Physics help
1) A worker stands still on a roof sloped at an angle of 25° above the horizontal. He is prevented from slipping by a static frictional force of 450 N. Find the mass of the worker.
2) A stuntman is being pulled along a rough road at a constant velocity by a cable attached to a moving truck. The cable is parallel to the ground. The mass of the stuntman is 105 kg, and the coefficient of kinetic friction between the road and him is 0.887. Find the tension in the cable.
3) A toboggan slides down a hill and has a constant velocity. The angle of the hill is 7.40° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?
Homework Answers
Add Answer to:
Physics help
1) A worker stands still on a roof sloped at an
angle of 25°...
A worker stands still on a roof sloped at an angle of 37° above the horizontal....
A worker stands still on a roof sloped at an angle of 37° above the horizontal. He is prevented from slipping by a static frictional force of 510 N. Find the mass of the worker.
A worker stands still on a roof sloped at an angle of 23° above the horizontal....
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 470 N. Find the mass of the worker.
A worker stands still on a roof sloped at an angle of 23° above the horizontal....
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 320 N. Find the mass of the worker. Number________ Units______
C Get Homework Help with C FULLSCREEN PRINTER VERSION BACK Chapter 04, Problem 057 A worker...
C Get Homework Help with C FULLSCREEN PRINTER VERSION BACK Chapter 04, Problem 057 A worker stands still on a roof sloped at an angle of 41 above the horizontal. He is prevented from slipping by a static frictional force of 400 N. Find the mass of the worker. | Units [ v] Number the tolerance is +/-296 SHOW HINT LINK TO IDT LINK TO IDT Question Attempts: Unlimited SAVE FOR LATER
Consult Interactive Solution 4.65 before beginning this problem. A toboggan slides down a hill and has...
Consult Interactive Solution 4.65 before beginning this problem. A toboggan slides down a hill and has a constant velocity. The angle of the hill is 5.30° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan? Number_____ Units_______
Consult Interactive Solution 4.65 before beginning this problem. A toboggan slides down a hill and has...
Consult Interactive Solution 4.65 before beginning this problem. A toboggan slides down a hill and has a constant velocity. The angle of the hill is 5.30° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the tobogga
A sled is being pulled across rough snow by a rope at an angle of 20°...
A sled is being pulled across rough snow by a rope at an angle of 20° to the horizontal. The sled has a mass of 31 kg and the passenger has a mass of 22 kg. The sled is moving at a steady 0.63 m/s. The force on the rope is 65 N. A. Draw a free body diagram for the sled and passenger as one thing. B. What is the normal force on the sled? C. What is the...
A roof of a house makes an angle of 350 with respect to the horizontal. A...
A roof of a house makes an angle of 350 with respect to the horizontal. A 10 kg chunk of ice is sitting on the root, 5 m from the edge, which is itself 8m above the ground. It was found that on a particular day, when the coefficient of kinetic friction is 0.35, a block that starts from rest and slides off the roof, still wieghing 10 kg, hits the ground with a speed of 13.6 m/s. Let’s see...
PHYSICS HOMEWORK # 26 NEWTON'S LAWS FIRST LAW & FRICTION 24. Two masses are sitting on...
PHYSICS HOMEWORK # 26 NEWTON'S LAWS FIRST LAW & FRICTION 24. Two masses are sitting on a horizontal surface as shown to the right. The coefficient of sliding friction between these two masses and the horizontal surface is m-0.520. A string is attached to the end of mas m,8.00 kg. This string is then looped arounda pulley and is finally attached to the left vertical surface. The pulley is attached to mass m 12.0 kg as shown and then a...
A mass M slides upward along a rough plane surface inclined at angle to the horizontal....
A mass M slides upward along a rough plane surface inclined at angle to the horizontal. Initially the mass has a speed V before it slides a distance Lup the incline. The coefficient of kinetic friction between the mass and the incline is *. While sliding, the acceleration of the mass is: Directed upward along the incline Directed downward along the incline Determined by the force of gravity on the mass Determined by the frictional force on the mass Determined...
C Get Homework Help with C FULLSCREEN PRINTER VERSION BACK Chapter 04, Problem 057 A worker stands still on a roof sloped at an angle of 41 above the horizontal. He is prevented from slipping by a static frictional force of 400 N. Find the mass of the worker. | Units [ v] Number the tolerance is +/-296 SHOW HINT LINK TO IDT LINK TO IDT Question Attempts: Unlimited SAVE FOR LATER
PHYSICS HOMEWORK # 26 NEWTON'S LAWS FIRST LAW & FRICTION 24. Two masses are sitting on a horizontal surface as shown to the right. The coefficient of sliding friction between these two masses and the horizontal surface is m-0.520. A string is attached to the end of mas m,8.00 kg. This string is then looped arounda pulley and is finally attached to the left vertical surface. The pulley is attached to mass m 12.0 kg as shown and then a...
A mass M slides upward along a rough plane surface inclined at angle to the horizontal. Initially the mass has a speed V before it slides a distance Lup the incline. The coefficient of kinetic friction between the mass and the incline is *. While sliding, the acceleration of the mass is: Directed upward along the incline Directed downward along the incline Determined by the force of gravity on the mass Determined by the frictional force on the mass Determined...
Most questions answered within 3 hours.
-
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 1 hour ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 3 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 3 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 5 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 5 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 5 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 5 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 5 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 5 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 5 hours ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 5 hours ago -
Would CuCO3 aqueous salt combined with calcium chloride
form a solid precipitate? If so, what would...
asked 5 hours ago