a crate of apples with a mass of 24.8 kg is on a ramp with angle...
a crate of apples with a mass of 24.8 kg is on a ramp with angle of incline 30.0° to the horizontal. The coefficients of friction are μs = 0.750 and μk = 0.400. ind the normal force (magnitude) on the crate if the crate is sliding down the ramp.
Homework Answers
A 2000-N crate is to be held in place on a ramp that rises at 30.0°...
A 2000-N crate is to be held in place on a ramp that rises at 30.0°
above the horizontal (see figure). The massless rope attached to
the crate makes a 22.0° angle above the surface of the ramp. The
coefficients of friction between the crate and the surface of the
ramp are μk=0.450 and μs=0.650. The pulley has no appreciable
mass or friction.
A. What is the MAXIMUM weight w that can be used to hold
this crate stationary on...
A 25.0-kg crate is initially at rest at the top of a ramp that is inclined...
A 25.0-kg crate is initially at rest at the top of a ramp that is inclined at an angle θ = 30.0 ◦ above the horizontal. You release the crate and it slides 1.25 m down the ramp before it hits a spring attached to the bottom of the ramp. The coefficient of kinetic friction between the crate and the ramp is 0.400 and the constant of the spring is k = 5000 N/m. How far does the crate compress...
A box of mass m = 2.00 kg is positioned on a ramp at an angle...
A box of mass m = 2.00 kg is positioned on a ramp at an angle θ. The length of the ramp (minus the width of the base of the box) is d = 3.00 m. The surface of the ramp has a coefficient of static friction μs = 0.500 and a coefficient of kinetic friction μk = 0.350. The angle θ is slowly increased until the box starts to slide down the ramp. Calculate the angle θmax at which...
A monkey purchases a crate of bananas at the warehouse. The total mass of the crate...
A monkey purchases a crate of bananas at the warehouse. The total mass of the crate plus bananas is 45.00 kg. The monkey needs to pull the crate across the rough horizontal warehouse floor to the door. The coefficients of friction between the crate and the floor are μs = 0.18 and μk = 0.15. The monkey attaches a vine around the crate and pulls on the vine at an angle of exactly 40.00o above the horizontal. He pulls with...
a. Place the crate on top of the ramp with the angle at 20o. Draw a free...
a. Place the crate on top of the ramp with the angle at
20o. Draw a free body diagram showing all the
forces and their components.
b. If the crate does not go down the ramp, which two forces are
responsible for keeping the ramp at rest and preventing it from
sliding down?
c. Slowly increase the angle until the block JUST starts to
move. What is the angle when the block JUST moves?
d. For the angle when the block JUST...
A block with mass m1 = 9.4 kg is on an incline with an angle θ = 26° with respect to the horizontal
A block with mass m1 = 9.4 kg is on an incline with an angle θ = 26° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.24 and μs = 0.264. 1) When there is no friction, what is the magnitude of the acceleration of the block? 2) Now with friction, what is the magnitude of the acceleration of the block after it...
A 313-kg crate rests on a surface that is inclined above the horizontal at an angle...
A 313-kg crate rests on a surface that is inclined above the horizontal at an angle of 17.0°. A horizontal force (magnitude = 414 N and parallel to the ground, not the incline) is required to start the crate moving down the incline. What is the coefficient of static friction between the crate and the incline?
Two laborers are controlling the slide of a 400 kg crate down a ramp at constant...
Two laborers are controlling the slide of a 400 kg crate down a ramp at constant velocity. One of them is pulling a rope (T) and the other is holding (resisting) by hand (P). The angle of contact each makes with the crate is 30.0 degree. Draw a free-body diagram for the crate and identify all forces. (2 pts.) If the coefficient of kinetic friction between the crate and the ramp is 0.20, the ramp angle is 25.0 degree, and...
You push a crate of mass m up a ramp inclined at an angle A with...
You push a crate of mass m up a ramp inclined at an angle A with a force parallel to the ramp but of varying magnitude. The coefficient of friction between the crate and ramp is u, and the speed of the crate, which starts from rest, is v at the end of the ramp of length d. a) Use the work-energy theorem to find the work done by the non-constant force in moving the crate up the ramp. b)...
A crate of mass 9.6 kg is pulled up a rough incline with an initial speed...
A crate of mass 9.6 kg is pulled up a rough incline with an initial speed of 1.58 m/s. The pulling force is 94 N parallel to the incline, which makes an angle of 20.2° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.02 m. (a) How much work is done by the gravitational force on the crate? 159.82 You have the correct magnitude of the work, but think carefully about the sign....
A 2000-N crate is to be held in place on a ramp that rises at 30.0°
above the horizontal (see figure). The massless rope attached to
the crate makes a 22.0° angle above the surface of the ramp. The
coefficients of friction between the crate and the surface of the
ramp are μk=0.450 and μs=0.650. The pulley has no appreciable
mass or friction.
A. What is the MAXIMUM weight w that can be used to hold
this crate stationary on...
a. Place the crate on top of the ramp with the angle at
20o. Draw a free body diagram showing all the
forces and their components.
b. If the crate does not go down the ramp, which two forces are
responsible for keeping the ramp at rest and preventing it from
sliding down?
c. Slowly increase the angle until the block JUST starts to
move. What is the angle when the block JUST moves?
d. For the angle when the block JUST...
Two laborers are controlling the slide of a 400 kg crate down a ramp at constant velocity. One of them is pulling a rope (T) and the other is holding (resisting) by hand (P). The angle of contact each makes with the crate is 30.0 degree. Draw a free-body diagram for the crate and identify all forces. (2 pts.) If the coefficient of kinetic friction between the crate and the ramp is 0.20, the ramp angle is 25.0 degree, and...
A crate of mass 9.6 kg is pulled up a rough incline with an initial speed of 1.58 m/s. The pulling force is 94 N parallel to the incline, which makes an angle of 20.2° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.02 m. (a) How much work is done by the gravitational force on the crate? 159.82 You have the correct magnitude of the work, but think carefully about the sign....
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