Question

Two wooden crates rest on top of one another. The smaller top crate has a mass...

Two wooden crates rest on top of one another. The smaller top crate has a mass of m1 = 15 kg and the larger bottom crate has a mass of m2 = 88 kg. There is NO friction between the crate and the floor, but the coefficient of static friction between the two crates is μs = 0.85 and the coefficient of kinetic friction between the two crates is μk = 0.66. A massless rope is attached to the lower crate to pull it horizontally to the right (which should be considered the positive direction for this problem).

What is the maximum tension that the lower crate can be pulled at before the upper crate begins to slide?

4)

The tension is increased in the rope to 1202 N causing the boxes to accelerate faster and the top box to begin sliding. What is the acceleration of the upper crate?

As the upper crate slides, what is the acceleration of the lower crate?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A crate of mass m1 = 15.3 kg is pulled by a massless rope up a...
A crate of mass m1 = 15.3 kg is pulled by a massless rope up a 36.9° ramp. The rope passes over an ideal pulley and is attached to a hanging crate of mass m2 = 16.3 kg. The crates move 1.4 m, starting from rest. Find the work done by gravity on the sliding crate. A crate of mass m1 = 12.4 kg is pulled by a massless rope up a 36.9° ramp. The rope passes over an ideal...
A 17.6-kg crate starts at rest at the top of a 60.0° incline. The coefficients of...
A 17.6-kg crate starts at rest at the top of a 60.0° incline. The coefficients of friction are μs = 0.400 and μk = 0.300. The crate is connected to a hanging 8.00-kg box by an ideal rope and pulley. a) How long does it take the crate to slide 2.00 m down the incline? ( in seconds) b)To push the crate back up the incline at constant speed, with what force should you push on the crate (parallel to...
At an Amazon shipping center, a box of cups of mass 2.6 kg rests on top...
At an Amazon shipping center, a box of cups of mass 2.6 kg rests on top of a box of dishes of mass 5.5 kg. The boxes are stacked on a rolling conveyer system that is essentially frictionless. However, the coefficient of static friction between the boxes is μs=0.45μs=0.45. What is the maximum horizontal force that can be applied to the upper box so that the boxes accelerate together, without the upper box sliding on the lower one?
3. Two blocks of mass m and M = 10.0 ks are connected via a massless...
3. Two blocks of mass m and M = 10.0 ks are connected via a massless and frictionless pully with a configuration as shown. The coefficient of static friction is μs = 0.7 between block and surface, while the coefficient of kinematic fraction is μk = 0.4. 1) Draw free-body diagram for both block (identify all the forces on the two objects 2) What is the maximum mass m for the hanging block so that no sliding occurs? 3) If...
A heavy sled is being pulled by two people as shown in the figure. The coefficient...
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is μs = 0.619, and the kinetic friction coefficient is μk = 0.459. The combined mass of the sled and its load is m = 366 kg. The ropes are separated by an angle φ = 22°, and they make an angle θ = 31.8° with the horizontal. Assuming both ropes pull equally hard, what...
A box rests on top of a flat bed truck. The box has a mass of...
A box rests on top of a flat bed truck. The box has a mass of m = 18 kg. The coefficient of static friction between the box and truck is μs = 0.8 and the coefficient of kinetic friction between the box and truck is μk = 0.61. 1)The truck accelerates from rest to vf = 17 m/s in t = 13 s (which is slow enough that the box will not slide). What is the acceleration of the...
QUESTION 15 A wooden crate with a mass of 136 kg sits on the ground. The...
QUESTION 15 A wooden crate with a mass of 136 kg sits on the ground. The coefficients of friction between the ground and the crate are 0.85 and 0.45. One person pushes the crate to the right with a force of 1200 N and another pushes the crate to the left with a force of 2500 N. What is the acceleration of the crate? 5.15 m/s2 to the left 1.23 m/s2 to the left 0.0 m/s2 or it doesn't move...
A crate with a mass of 3.00 kg starts from rest at the top of a...
A crate with a mass of 3.00 kg starts from rest at the top of a 28.0° incline and slides 2.00 m down the incline in 1.25 s. (a) What is the magnitude of the acceleration of the crate (in m/s2)? 2.56 m/s2 correct b) What is the frictional force (in N) acting on the crate? (Enter the magnitude.) (c) What is the coefficient of kinetic friction between the crate and the incline? (d) What is the speed of the...
Two packing crates of masses m1 = 10.0 kg and m2 = 4.70 kg are connected...
Two packing crates of masses m1 = 10.0 kg and m2 = 4.70 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 4.70-kg crate lies on a smooth incline of angle 35.0°. Find the following. Two crates are connected to each other by a string that passes over a pulley, which is attached to the top corner of a wedge. The crate of mass m1 hangs freely below the pulley....
The lower block in the figure is pulled on by a rope with a tension force...
The lower block in the figure is pulled on by a rope with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.35. The coefficient of kinetic friction between the lower block and the upper block is also 0.35. A. What is the acceleration of the 2.0 kg block?