A ruler is initially at rest when a student briefly exerts a downward force on the right end, as shown. The magnitude of the force exerted by the student is less than the weight of the ruler. Assume that the pivot point is frictionless.
Answer the following questions based on this description.
Question 1
While the hand is pushing, but before the ruler begins to move, the tangential acceleration of the ruler is ______.
| zero |
| not zero and directed into the page |
| not zero and directed out of the page |
| not zero and directed along the ruler |
| not zero and directed perpendicular to the ruler but in the plane of the page |
Question 2
While the hand is pushing, but before the ruler begins to move, the centripetal acceleration of the ruler is ______.
| zero |
| not zero and directed into the page |
| not zero and directed out of the page |
| not zero and directed along the ruler |
| not zero and directed perpendicular to the ruler but in the plane of the page |
Question 3
While the hand is pushing, but before the ruler begins to move, the angular acceleration of the ruler is _____.
| zero |
| not zero and directed into the page |
| not zero and directed out of the page |
| not zero and directed along the ruler |
| not zero and directed perpendicular to the ruler but in the plane of the screen |
Question 4
At the instant the hand has stopped pushing, the tangential acceleration of the ruler is _______.
| zero |
| not zero and directed into the page |
| not zero and directed out of the page |
| not zero and directed along the ruler |
| not zero and directed perpendicular to the ruler but in the plane of the page |
Question 5
At the instant the hand has stopped pushing, the centripetal acceleration of the ruler is _________.
| zero |
| not zero and directed into the page |
| not zero and directed out of the page |
| not zero and directed along the ruler |
| not zero and directed perpendicular to the ruler but in the plane of the page |
Question 6
At the instant the hand has stopped pushing, the angular acceleration of the ruler is _______.
| zero |
| not zero and directed into the page |
| not zero and directed out of the page |
| not zero and directed along the ruler |
| not zero and directed perpendicular to the ruler but in the plane of the page |
Please Explain Answers
Homework Answers
Add Answer to:
A ruler is initially at rest when a student briefly exerts a
downward force on the...
Options: a)zero b)not zero and directed into the page c)not zero and directed out of page...
Options:
a)zero b)not zero and directed into the page c)not zero and
directed out of page d) not zero and directed along the ruler e)
not zero and directed perpendicular to the ruler but in the plane
of the page
Questions:
1: While the hand is pushing, but before the ruler begins to
move, the tangential acceleration of the ruler is
2: While the hand is pushing, but before the ruler begins to
move, the centripetal acceleration of the ruler...
Just need help on the red X A student decides to move a box of books...
Just need help on the red X
A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 79.8 N at an angle of 28.0° above the horizontal. The box has a mass of 20.0 kg, and the coefficient of kinetic friction between box and floor is 0.300. (Indicate the direction with the sign of your answer.) (a) Find the acceleration of the...
Part 1: A DVD is initially at rest so that the line PQ on the disc's surface is along the +x-axis
Part 1: A DVD is initially at rest so that the line PQ on the disc's surface is along the +x-axis. The disc begins to turn with a constant α = 5.0 rad/s2. .1. At-0.40s, what is the angle between the line PQ and the +x-axis? A. 0.40 rad B. 0.80 rad C. 1.0 rad D. 2.0 rad 2. How do the centripetal acceleration and tangential acceleration compare at points P and Q?Part 2: 3. You want to double the radius of a rotating...
STAP 5.) A pulley is rotating at an angular velocity of 32 revolutions per minute. The...
STAP 5.) A pulley is rotating at an angular velocity of 32 revolutions per minute. The radius of the pulley is 0.3 m. a.) How what is the angular distance the pulley rotates in 5 sec? b.) What is the linear distance the pulley rotates in 5 sec? c.) If a motor takes 30 sec to speed up the pulley to 82 revolutions per minute, what was the angular acceleration the motor applied? d.) How far will the pulley have...
EXAMPLE 16.5 The large window in Fig. 16-10 is opened using a hydraulic cylinder AB. If...
EXAMPLE 16.5 The large window in Fig. 16-10 is opened using a hydraulic cylinder AB. If the cylinder extends at a constant rate of 0.5 m/s, determine the angular velocity and angular acceleration of the window at the instant 0 30° 1 m SOLUTION Position Coordinate Equation. The angular motion of the window can be obtained using the coordinate 0, whereas the extension or motion along the hydraulic cylinder is defined using a coordinate s, which measures its length from...
A student is riding their bike when they come across a turn in the form of a circular arc of radius R 3.0m as pictured in the diagram below and travel along this arc in the clockwise direction. At on...
A student is riding their bike when they come across a turn in the form of a circular arc of radius R 3.0m as pictured in the diagram below and travel along this arc in the clockwise direction. At one point along this trajectory (the origin of the given coordinate system) it makes sense to define the Cartesian coordinate system shown where the x-axis is tangent to the trajectory and the y-axis is perpendicular to it. At this point the...
Question 7 is related to the force vs mass graph that is provided and the first...
Question 7 is related to the force vs mass graph that is
provided and the first section of the excel sheet. Question 3 has
to do with the force bs acceleration graph and second section of
the excel sheet. The first two files are showing the equations that
are supposed to be used to find these answers. Any help would be
greatly appreciated.
I
mainly need assistance on number 1 and 2 now. The question with the
free body diagram...
1. When charged particles move parallel to the direction of a magnetic field, then according to...
1. When charged particles move parallel to the direction of a magnetic field, then according to the magnetic force equation, the particles will travel in a a. straight line b. circular path c. helical path d. loop 2. A 3.0-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 54.9 A and experiences a magnetic force of 20.6 N. If the magnetic field has a strength of 0.25 T at the location of...
Sample Class Problems-Force and Acceleration Prob#l: Two people are pushing a stalled car (the ma...
Sample Class Problems-Force and Acceleration Prob#l: Two people are pushing a stalled car (the mass of the car is 1850kg). One person applies a force to the car, while the other applies a force of 395N. Both forces act in the same of 560N also acts on the car, but in a direction opposite force arises because of friction and the extent to which the pavement opposes Find the acceleration of the car. direction. A third force to that in...
Problem 23.29 (Multistep) An accelerated electron An electron is initially at rest. At time t1=0 it...
Problem 23.29 (Multistep)
An accelerated electron
An electron is initially at rest. At time t1=0 it is accelerated
upward with an acceleration of a= 1 × 1019
m/s2 for a very short time (this large acceleration is
possible because the electron has a very small mass). We make
observations at location A, x= 16 meters from the electron
(see the figure).
Part 1
(a) At time t2= 1 ns (1 × 10-9 s), what is the magnitude
and direction of...
Options:
a)zero b)not zero and directed into the page c)not zero and
directed out of page d) not zero and directed along the ruler e)
not zero and directed perpendicular to the ruler but in the plane
of the page
Questions:
1: While the hand is pushing, but before the ruler begins to
move, the tangential acceleration of the ruler is
2: While the hand is pushing, but before the ruler begins to
move, the centripetal acceleration of the ruler...
Just need help on the red X
A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 79.8 N at an angle of 28.0° above the horizontal. The box has a mass of 20.0 kg, and the coefficient of kinetic friction between box and floor is 0.300. (Indicate the direction with the sign of your answer.) (a) Find the acceleration of the...
STAP 5.) A pulley is rotating at an angular velocity of 32 revolutions per minute. The radius of the pulley is 0.3 m. a.) How what is the angular distance the pulley rotates in 5 sec? b.) What is the linear distance the pulley rotates in 5 sec? c.) If a motor takes 30 sec to speed up the pulley to 82 revolutions per minute, what was the angular acceleration the motor applied? d.) How far will the pulley have...
EXAMPLE 16.5 The large window in Fig. 16-10 is opened using a hydraulic cylinder AB. If the cylinder extends at a constant rate of 0.5 m/s, determine the angular velocity and angular acceleration of the window at the instant 0 30° 1 m SOLUTION Position Coordinate Equation. The angular motion of the window can be obtained using the coordinate 0, whereas the extension or motion along the hydraulic cylinder is defined using a coordinate s, which measures its length from...
A student is riding their bike when they come across a turn in the form of a circular arc of radius R 3.0m as pictured in the diagram below and travel along this arc in the clockwise direction. At one point along this trajectory (the origin of the given coordinate system) it makes sense to define the Cartesian coordinate system shown where the x-axis is tangent to the trajectory and the y-axis is perpendicular to it. At this point the...
Question 7 is related to the force vs mass graph that is
provided and the first section of the excel sheet. Question 3 has
to do with the force bs acceleration graph and second section of
the excel sheet. The first two files are showing the equations that
are supposed to be used to find these answers. Any help would be
greatly appreciated.
I
mainly need assistance on number 1 and 2 now. The question with the
free body diagram...
Sample Class Problems-Force and Acceleration Prob#l: Two people are pushing a stalled car (the mass of the car is 1850kg). One person applies a force to the car, while the other applies a force of 395N. Both forces act in the same of 560N also acts on the car, but in a direction opposite force arises because of friction and the extent to which the pavement opposes Find the acceleration of the car. direction. A third force to that in...
Most questions answered within 3 hours.
-
You follow the lab procedure and at the end of Part 4C, you used
an average...
asked 14 minutes ago -
Write 250-450 words, about the following: • Analyze how a
servant leader in your organization or...
asked 17 minutes ago -
3. American and Japanese workers can each produce 4 cars a
year. An American worker can...
asked 20 minutes ago -
On October 1, 20X1, a company purchased a piece of land by
agreeing to pay the...
asked 32 minutes ago -
Jamie is doing a survey at her school about whether the students
feel the cafeteria food...
asked 37 minutes ago -
What are the roles of 3' and 5' untranslated regions in
mRNAs?
asked 39 minutes ago -
A domestic television receives antenna delivers a sky noise
power of -105 dBm to a matched...
asked 37 minutes ago -
What do you think are the chemical reactions involved in the
breathalyzer tests administered to potentially...
asked 52 minutes ago -
A random sample of 120 observations produces a mean of
38.2 from a population with a...
asked 59 minutes ago -
The average area of land burned by forest fires every year in
Canada is 2.5 million...
asked 1 hour ago -
36. The basic difference between government bureaus and market
firms is that bureaus:
a. can...
asked 1 hour ago -
java
- A recursive method findR() to search for a number in list
(ArrayList)
- A...
asked 1 hour ago