1. When an object is dropped, the motion diagram shows the object having a velocity vector...
1. When an object is dropped, the motion diagram shows the object having a velocity vector that is increasing in magnitude as a function of time.
A. True
B. False
2. f one throws a ball straight up, the acceleration of gravity is positive, while dropping or throwing a ball straight down it would be negative.
A.True
B. False
3.
Homework Answers
1. True
v= at
2. False
acceleration of gravity is always same and negative (downwards)
Add Answer to:
1. When an object is dropped, the motion diagram shows the
object having a velocity vector...
en an object undergoes non-uniform circular motion, its acceleration vector can be broken into a radial...
en an object undergoes non-uniform circular motion, its acceleration vector can be broken into a radial component and a tangential component. O True O False 10 For non-uniform circular motion, the radial component of the object's acceleration represents the lengthening or shortening of the object's velocity vector. True False 11.1 1 m circular motion, the tangential component of th For non-unifor e object's acceleration represents the change in the direction of the object's velocity vector. True O False
1. A ball is thrown up into the air. a) Draw motion diagram and the point-like...
1. A ball is thrown up into the air. a) Draw motion diagram and the point-like object of the forces applied on the ball on its way up and way down (show +/-) magnitude of acceleration and change in velocity. b) Draw a displacement vs time diagram and velocity vs time for this process. c) Using kinematics equation write down the position vs time equation and velocity vs time equation with regards to the gravitational force experienced by the ball...
Question 3 The diagram below shows a quarterback throwing a ball. All the weight of the...
Question 3 The diagram below shows a quarterback throwing a ball. All the weight of the quarterback is on his back foot. If the ball leaves the quarterback's hand with a positive horizontal acceleration and a negative vertical acceleration, and the quarterback has no horizontal or vertical acceleration, draw the free body diagram for: A. Ball and quarterback together B. Ball alone C. Quarterback alone O O
Find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity...
Find the average acceleration vector at point 1. Draw the
completed motion diagram, showing the velocity vectors and
acceleration vector (v0 is velocity between points 0 and 1 and v1
is velocity between points 1 and 2). Draw the velocity vectors
starting at the appropriate black dots and acceleration vector. The
location, orientation and length of the velocity vectors will be
graded. The orientation of the acceleration vector will be graded.
The location and length of the acceleration vector will...
Part B Review The following figure shows the first three points of a motion diagram.(Figure 1)...
Part B Review The following figure shows the first three points of a motion diagram.(Figure 1) Find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity vectors and acceleration vector (v is velocity between points 0 and 1 and v is velocity between points 1 and 2) Draw the velocity vectors starting at the appropriate black dots and acceleration vector. The location, orientation and length of the velocity vectors will be graded. The orientation...
Find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity...
Find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity vectors and acceleration vector (vo is velocity between points 0 and 1 and vi is velocity between points 1 and 2). Draw the velocity vectors starting at the appropriate black dots and acceleration vector. The location, orientation and length of the velocity vectors will be graded. The orientation of the acceleration vector will be graded. The location and length of the acceleration vector will...
1. The graph in the figure shows the position of an object as a function of...
1. The graph in the figure shows the position of an object as a function of time. The letters H-L represent particular moments of time. At which moments shown (H, I, etc.) is the speed of the object (a) the greatest? (b) the smallest? oi- Time 2. A car accelerates from 10m/s to 30 m/'s at a rate of 3 m/s. How far does the car travel while accelerating? Answer: x = 133 m 3. A ball is thrown directly...
An object is dropped from the top of a building. It hits the ground with a...
An object is dropped from the top of a building. It hits the
ground with a speed of 40 m/s.
a) How high is the building?
b) How long was the object in the air?
Kinematics (motion in a straight line with constant acceleration): xo+ vot +at2 vvo + at v2 v+2a(x -x.) dx dv 12 = a= dt dt Kinematics (motion in a straight line with no-constant acceleration): C. a dt v dt v= Vo t o x xo...
Part A (Figure 1) shows the motion diagram for a rider on a Ferris wheel that...
Part A (Figure 1) shows the motion diagram for a rider on a Ferris wheel that was turning at a constant speed. The inset to the figure shows how to find the acceleration vector at the rightmost point. Use a similar analysis to find the rider's acceleration vector at the leftmost position of the motion diagram in (Figure 2) Figure Submit Request Answer The accele ceser of the cie Part B Find the rider's acceleration vector at the highest position...
d) zero, vertical downward. e) zero, horizontal. 10. In ideal projectil the x-component of the velocity...
d) zero, vertical downward. e) zero, horizontal. 10. In ideal projectil the x-component of the velocity of the object during the ascending part of the e motion, when the positive x-axis is chosen to be horizontally rightward, motion and the x- component of the velocity during the descending part of the motion are, respectively a) positive, negative. b) negative, positive. c) positive, positive. d) negative, negative. 11. In ideal projectile motion, when the positive y-axis is chosen to be vertically...
en an object undergoes non-uniform circular motion, its acceleration vector can be broken into a radial component and a tangential component. O True O False 10 For non-uniform circular motion, the radial component of the object's acceleration represents the lengthening or shortening of the object's velocity vector. True False 11.1 1 m circular motion, the tangential component of th For non-unifor e object's acceleration represents the change in the direction of the object's velocity vector. True O False
Question 3 The diagram below shows a quarterback throwing a ball. All the weight of the quarterback is on his back foot. If the ball leaves the quarterback's hand with a positive horizontal acceleration and a negative vertical acceleration, and the quarterback has no horizontal or vertical acceleration, draw the free body diagram for: A. Ball and quarterback together B. Ball alone C. Quarterback alone O O
Find the average acceleration vector at point 1. Draw the
completed motion diagram, showing the velocity vectors and
acceleration vector (v0 is velocity between points 0 and 1 and v1
is velocity between points 1 and 2). Draw the velocity vectors
starting at the appropriate black dots and acceleration vector. The
location, orientation and length of the velocity vectors will be
graded. The orientation of the acceleration vector will be graded.
The location and length of the acceleration vector will...
Part B Review The following figure shows the first three points of a motion diagram.(Figure 1) Find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity vectors and acceleration vector (v is velocity between points 0 and 1 and v is velocity between points 1 and 2) Draw the velocity vectors starting at the appropriate black dots and acceleration vector. The location, orientation and length of the velocity vectors will be graded. The orientation...
Find the average acceleration vector at point 1. Draw the completed motion diagram, showing the velocity vectors and acceleration vector (vo is velocity between points 0 and 1 and vi is velocity between points 1 and 2). Draw the velocity vectors starting at the appropriate black dots and acceleration vector. The location, orientation and length of the velocity vectors will be graded. The orientation of the acceleration vector will be graded. The location and length of the acceleration vector will...
1. The graph in the figure shows the position of an object as a function of time. The letters H-L represent particular moments of time. At which moments shown (H, I, etc.) is the speed of the object (a) the greatest? (b) the smallest? oi- Time 2. A car accelerates from 10m/s to 30 m/'s at a rate of 3 m/s. How far does the car travel while accelerating? Answer: x = 133 m 3. A ball is thrown directly...
An object is dropped from the top of a building. It hits the
ground with a speed of 40 m/s.
a) How high is the building?
b) How long was the object in the air?
Kinematics (motion in a straight line with constant acceleration): xo+ vot +at2 vvo + at v2 v+2a(x -x.) dx dv 12 = a= dt dt Kinematics (motion in a straight line with no-constant acceleration): C. a dt v dt v= Vo t o x xo...
Part A (Figure 1) shows the motion diagram for a rider on a Ferris wheel that was turning at a constant speed. The inset to the figure shows how to find the acceleration vector at the rightmost point. Use a similar analysis to find the rider's acceleration vector at the leftmost position of the motion diagram in (Figure 2) Figure Submit Request Answer The accele ceser of the cie Part B Find the rider's acceleration vector at the highest position...
d) zero, vertical downward. e) zero, horizontal. 10. In ideal projectil the x-component of the velocity of the object during the ascending part of the e motion, when the positive x-axis is chosen to be horizontally rightward, motion and the x- component of the velocity during the descending part of the motion are, respectively a) positive, negative. b) negative, positive. c) positive, positive. d) negative, negative. 11. In ideal projectile motion, when the positive y-axis is chosen to be vertically...
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