Question

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, what is the direction of the friction force on box 1 (right, left, none)?

When the truck is slowing down, what is the maximum magnitude of the static friction force on box 1 (to slow it down with the truck and not let it slide)?

When the truck is slowing down, what is the maximum magnitude of the truck's acceleration such that box 1 does not slide?

What is the minimum time for the truck to stop such that box 1 does not slide? Use your maximum acceleration from the previous problem.

Given this minimum time, what is the minimum distance for the truck to stop without box 1 sliding?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Let me know if you need any further clarification on this.

Please upvote the answer if you have understood it.

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 5 kg box sits on an inclined plane. If the coefficient of static friction between...
A 5 kg box sits on an inclined plane. If the coefficient of static friction between the plane and the box is µs = 0.15. What is the maximum angle θmax that the plane can be inclined without the box sliding?
A 12.3 kg box sits on a horizontal table. A string with tension 31.1 N pulls...
A 12.3 kg box sits on a horizontal table. A string with tension 31.1 N pulls on the box to the right, but static friction between the box and the table prevents the box from moving. The coefficient of static friction between the box and the table is 0.43. What is the magnitude of the static friction force on the box?  
A file cabinet made of steel (m=50 kg) sits in the back of a dump truck....
A file cabinet made of steel (m=50 kg) sits in the back of a dump truck. The bed of the truck, which is also made of steel, is slowly tilted. The coefficients of friction for steel on steel are μ_s = 0.80 and μ_k = 0.60. a) (4 points) What is the magnitude of the static friction force on the cabinet when the bed is tilted 20 degrees? Include a free body diagram in your solution. b) (4 points) At...
A 20.0 kg box (200 N) rests on an incline. The surface makes an angle of...
A 20.0 kg box (200 N) rests on an incline. The surface makes an angle of 22.62° with the horizontal and has µk = 0.62 and µs = 0.81. A) A horizontal force with a magnitude of 400 N acts on the box. Does the box move? If not, why not? If it does, what is its acceleration B) What minimum horizontal force is required to keep the box from sliding down the incline?
A 20.0 kg box (200 N) rests on an incline.  The surface makes an angle of 22.62°...
A 20.0 kg box (200 N) rests on an incline.  The surface makes an angle of 22.62° with the horizontal and has µk= 0.62 and µs= 0.81. A)         A horizontal force with a magnitude of 400 N acts on the box.  Does the box move?  If not, why not?  If it does, what is its acceleration? B)         What minimum horizontal force is required to keep the box from sliding down the incline?
Question 1: A wood crate (m = 200 kg) sits in the back of a truck....
Question 1: A wood crate (m = 200 kg) sits in the back of a truck. The friction coefficients between the crate and the truck are μs = 0.5 and μk = 0.3. a) (8 points) The truck starts moving up a 15◦ hill. What is the maximum acceleration the truck can have that will not make the crate slide out the back? b) (8 points) What is the maximum acceleration the truck can have that will not make the...
A box of mass 14 kg sits at rest on a ramp that makes an angle...
A box of mass 14 kg sits at rest on a ramp that makes an angle of 30 degrees with the horizontal. The coefficient of static friction between the box and the ramp is 0.88. What is the magnitude of the frictional force between the box and the ramp?
A 5.00 kg block sits on the floor at rest. You pull on a rope upwards...
A 5.00 kg block sits on the floor at rest. You pull on a rope upwards at an angle. The coefficient of static friction is 0.400 and the coefficient of kinetic friction is 0.300. When you pull upwards with a force of 20.0 N at an angle of 35.0°, what is the force of friction on the box? What is the acceleration of the box?
A 100 kg person pushes a box up a ramp at constant speed. The mass of...
A 100 kg person pushes a box up a ramp at constant speed. The mass of the box is 30 kg, the coefficient of kinetic friction between the box and the ramp is 0.2, and the ramp is inclined 25 degrees above the horizontal. The person (new at pushing boxes up ramps) pushes purely in the horizontal direction. HINT: you must draw complete FBDs to receive full credit. a) Find an expression for the magnitude of the normal force on...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT