Question

A 35 kg crate is at rest on the floor. A man attempts to push it...

A 35 kg crate is at rest on the floor. A man attempts to push it across the floor by applying a 100 N force horizontally.

(a) Take the coefficient of static friction between the crate and the floor to be 0.37 and show that the crate does not move.

(b) A second man helps by pulling up on the crate. Calculate the minimum vertical force he must apply so that the crate starts to move across the floor.

(c) If the second man applies a horizontal rather than a vertical force, what minimum force, in addition to the 100 N force of the first man, must he exert to get the crate started.

Thank you!

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 crate of 31.6-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal...
A crate of 31.6-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 309 N . After that you must reduce your push to 248 N to keep it moving at a steady 22.0 cm/s What is the coefficient of static friction between the crate and the floor? What is the coefficient of kinetic friction between the crate and the floor?...
It takes 120 N to push a crate across the floor at constant speed. Which of...
It takes 120 N to push a crate across the floor at constant speed. Which of the following conditions must be true (select ALL correct answers): Group of answer choices the crate is in dynamic equlibrium the force of friction is -120 N the net force is 120 N the net force is zero the crate will slowly speed up the crate is in static equilibrium the force of friction is zero
Suppose you have to move a heavy crate of weight 875 N by sliding it along...
Suppose you have to move a heavy crate of weight 875 N by sliding it along a horizontal concrete floor. You push the crate to the right with a horizontal force of magnitude 300 N, but friction prevents the crate from sliding. What is the magnitude Fp of the minimum force you need to exert on the crate to make it start sliding along the floor? Let the coefficient of static friction ?s between the crate and the floor be...
A 69 kg crate is dragged across a floor by pulling on a rope attached to...
A 69 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 12° above the horizontal. (a) If the coefficient of static friction is 0.46, what minimum force magnitude is required from the rope to start the crate moving? (b) If μk = 0.36, what is the magnitude of the initial acceleration (m/s^2) of the crate?
A man is pulling a crate of mass m=50kg using a massless rope. The rope is...
A man is pulling a crate of mass m=50kg using a massless rope. The rope is at an angle of theta=30 degrees with respect to the floor. There is friction between the crate and the floor. The man pulls the rope with an increasing force until the block starts to move (let's call Fa the force he needs to apply to start moving the block). Once the block starts moving, the man then changes his pulling force (increasing or decreasing...
1.) Steve pushes a crate 20 m across a level floor at a constant speed with...
1.) Steve pushes a crate 20 m across a level floor at a constant speed with a force of 200 N. The velocity of the crate is in the direction of the force Steve is applying to the crate. How much work is done by Steve? 2.) Steve pushes a crate 20 m across a level floor at a constant speed with a force of 200 N. The velocity of the crate is in the direction of the force Steve...
Suppose you have a 75-kg wooden crate resting on a wood floor (μs = 0.45, μk...
Suppose you have a 75-kg wooden crate resting on a wood floor (μs = 0.45, μk = 0.25). (a) What maximum force can you exert horizontally on the crate without moving it? (b) If you continue to exert this force once the crate starts to slip, what will its acceleration then be?
A 50 astronaut on Mars pushes a large crate at constant velocity as hard as she...
A 50 astronaut on Mars pushes a large crate at constant velocity as hard as she can without her feet slipping. The coefficient of static friction between her feet and floor is 0.8. The coefficient of kinetic friction between the crate and floor is 0.4. (a) What is the largest crate mass she can push? Explain. (b) If she applies the maximum push force she can exert, but the crate mass is reduced to half the value found in part,...
1. [15 pts] A man drags his 35.0 kg suitcase across the ground with a force...
1. [15 pts] A man drags his 35.0 kg suitcase across the ground with a force that is directed 50° above the horizontal. The coefficient of static friction between the suitcase and the ground is 0.450, and the coefficient of kinetic friction is 0.330. a. What is the minimum force the man needs to exert to get the suitcase moving from rest?b. If he continues to exert the same amount of force once the suitcase begins to move, what will...
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force...
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 380 N . For the first 14 m the floor is frictionless, and for the next 14 m the coefficient of friction is 0.35. What is the final speed of the crate?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT