Question

A 50 kg box slides on a flat surface, initially sliding at 50 m/s. It has...

A 50 kg box slides on a flat surface, initially sliding at 50 m/s.

It has a smaller, 10 kg box on top,initially moving at the same velocity as the box.

The coefficient of kinetic friction is 0.5 for the largebox against the ground, and 0.4 for the smaller box against the larger box.

a) Both boxes start to slow from friction, but the larger box experiences a larger deceleration than the small one. This means the smaller box will slide on the surface of the larger one. How long does it take for the large box to stop?

b) How much longer does it take for the small box to stop? Assume the bottom box is large enough for the small one to never to slide off its side.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
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...
A bullet traveling at 289 m/s collides with a box and, slides across a smooth surface,...
A bullet traveling at 289 m/s collides with a box and, slides across a smooth surface, which is attached at one end to a handle. If a torque of 25.0 N*m is required to open the door, how long will it take for the block/ bullet combo to slide far enough on the lever to open the door? The mass of the block is 0.44 kg, and the mass of the bullet 3.0x10-3 kg. Assume the lever is perpendicular to...
A 9.00 kg box slides 2.00 m down a chute that is inclined at 53.0o below...
A 9.00 kg box slides 2.00 m down a chute that is inclined at 53.0o below the horizontal. The coefficient of kinetic friction between the box and the chute's surface is 0.40. a. Draw a free body diagram of the box as it is sliding down the chute. In terms of Introduction to Physics please! Calculate the work done on the box by b. friction c. gravity, and d. the normal force. e. What is the net work done on...
Box 1 of mass 2 kg is pressed against a spring with spring constant 600 N/m...
Box 1 of mass 2 kg is pressed against a spring with spring constant 600 N/m that is initially compressed by 0.5 m. The spring launches box 1 which then slides along a frictionless surface until it collides with box 2 (initially at rest) with mass 3 kg. They stick together, slide over a patch of sticky spilled soda with coefficient of kinetic friction 0.6 and length 1.2 m. Then, they fall off a cliff of height 3 m. How...
Question 4 A box of mass 75.8 kg is initially sliding upward (in the positive direction)...
Question 4 A box of mass 75.8 kg is initially sliding upward (in the positive direction) on a rough incline that makes an angle α = 58o with the horizontal. As in the previous problem: a massless string is tied to the box, runs parallel to the incline, passes over a frictionless pulley and is tied to mass M = 85 kg hanging on the other end. Assume the coefficient of kinetic friction between the box and the surface of...
A 4 kg block is sliding at an initial speed of 10 m/s across a surface,...
A 4 kg block is sliding at an initial speed of 10 m/s across a surface, encountering a constant friction force of 9 N. How much work is done on the block after it slides 20 cm? How fast is the block moving after sliding 20 cm? What's the total distance the block travels before coming to rest? What is the average power of friction on the block over the time it takes the block to come to rest? What...
A box (400 kg) sits inside the trailer of a semitruck traveling at a speed of...
A box (400 kg) sits inside the trailer of a semitruck traveling at a speed of 20 m/s (~ 44 mph). Suddenly, a car in front of the truck stops in the road. The driver of the truck hits the brakes to bring the truck to a stop. Assume that the coefficient of static friction µs = 0.7 between the box and the floor of the trailer. Assume g = 10 m/s2. When the truck slows down while traveling left,...
A stationary block of mass 5 kg explodes into two pieces L and R that slide...
A stationary block of mass 5 kg explodes into two pieces L and R that slide across a frictionless floor. The left piece slides across the region with friction and stops, the right piece compresses a spring. Momentum is conserved during the explosion. Piece L has a mass of 2 kg and encounters a flat surface with coefficient of kinetic friction µL = 0.4 and slides to a stop in distance dL = 0.5 m. Piece R slides across the...
Th figure below shows a mass m=1.0 kg which is initially moving with speed v=6.8 m/s...
Th figure below shows a mass m=1.0 kg which is initially moving with speed v=6.8 m/s at the top of a frictionless hill of height h=4.4 m. It slides down the hill until it encounters a flat section with coefficient of kinetic friction µk=0.8. Find the distance D the object travels before coming to a stop.
1. Aoife is pushing on a large box, which has a mass of 15 kg. The...
1. Aoife is pushing on a large box, which has a mass of 15 kg. The large box, in turn, pushes against a smaller box, which has a mass of 5 kg. Aoife pushes with a force of 160 N. The bottoms of the boxes are perfectly frictionless, but Aoife's shoes don't slip on the ground at all. Find the contact force between the boxes. 2. Aoife gets in an elevator with the two boxes from the first question stacked...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT