ZuoTi.Pro
Question

An 85 kg box rests on a horizontal surface. The coefficient of static friction between the...

An 85 kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.50. A horizontal force 250 N force is applied to the box. What is the magnitude of the static friction force on the box?

A.42N

B.250N

C.16.5N

D.130N

E.0.00N

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Forward force F = 250 N

Now Normal = mg = 85*9.8 = 83.3 N

Friction(max) Fs = mu*N = 0.5*83.3= 416.5  N

since Limiting friction is greater than forward push the friction is static . F< Fs

==> friction = forward push = 250 N

option B is correct.

0 0
Add a comment
Know the answer?
Add Answer to:
An 85 kg box rests on a horizontal surface. The coefficient of static friction between the...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A) A 50.0 kg box rests on a horizontal surface. The coefficients of static and kinetic...

    A) A 50.0 kg box rests on a horizontal surface. The coefficients of static and kinetic friction between the box and the surface are 0.300 and 0.200, respectively. What is the friction force on the box if a horizontal 175 N push is applied to it? Explain. B) A horizontal force of 250 N is applied to the box. After the box moves a distance d from rest, the speed of the box is measured to be 6.4 m/s. use...

  • need help on both 26 and 27 26 i need help A 25-kg box rests on a horizontal surface. the coefticient or stac...

    need help on both 26 and 27 26 i need help A 25-kg box rests on a horizontal surface. the coefticient or stac ition betwweetthe Dk and the sue applied to the box, but the box does not move. What is the friction force from the surface that is exerted on the box? Record Answer Question 27 (1 point) A wild young driver is traveling at a constant speed of 56 m/s drives in a circle track that is 500...

  • A 30-kg box is at rest on a horizontal floor with friction coefficientsμs= 0.65 (static) and...

    A 30-kg box is at rest on a horizontal floor with friction coefficientsμs= 0.65 (static) and μk= 0.55 (kinetic). You push on the box HORIZONTALLY (parallel to the floor) with varying applied force. For each applied force below, find the magnitude of the friction force exerted by the floor on the box(in Newtons), and state whether the friction is static or kinetic. (a) Applied force 100 N. (b) Applied force 150 N. (c) Applied force 190 N. (d) Applied force...

  • Question 6 1 pts A box of bananas weighing 40.ON rests on a horizontal surface. The...

    Question 6 1 pts A box of bananas weighing 40.ON rests on a horizontal surface. The coefficient of static friction (us) between the box and the surface is 0.40 while the coefficient of kinetic friction (uk) is 0.20. If a monkey applies a constant horizontal force of 6.0 N, and the box is initially at rest, what is the magnitude of the friction force 1 minutes after the monkey starts pushing? 16.0N 8.0 N Unable to determine O 0.ON 18.0N...

  • A mass of 9 kg rests on a floor with a coefficient of static friction of...

    A mass of 9 kg rests on a floor with a coefficient of static friction of 1.25 and coefficient of kinetic friction of kinetic friction of 0.1. One force is applied vertically downward of 10 Newtons and another force is applied at an angle of 15 degrees below the horizontal. Calculate what the magnitude this force needs to be in order to begin to move the mass. If the same amount of force is applied at the same angle above...

  • 15. A 12-kg crate rests on a horizontal surface and a boy pulls on it with...

    15. A 12-kg crate rests on a horizontal surface and a boy pulls on it with a force that is 30° below the horizontal. If the coefficient of static friction is 0.40, the minimum magnitude force he needs to start the crate moving is: A) 44 N B) 47 N C) 54 N D) 56 N E) 71 N

  • A 24-N block rests on a horizontal surface. The coefficients of static and kinetic friction between...

    A 24-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are ?s=0.76 and ?k=0.34. A horizontal string is attached to the block and a constant tension T is maintained in the string. blem 5-23a: A 24 N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are us=0.76 and μk=0.34. A horizontal string is attached to the block and...

  • 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?

  • A 5 kg block rests on a 30 degree incline. The coefficient of static friction between...

    A 5 kg block rests on a 30 degree incline. The coefficient of static friction between the block and the incline is .20. How large a horizontal force must push on the block if the block is to be on the verge of sliding A) up the incline and B) down an incline Answer: A) 43 N B) 16.6 N What would be the work to get me to this answer?

  • A 5.0 kg crate is resting on a horizontal plank. The coefficient of static friction is...

    A 5.0 kg crate is resting on a horizontal plank. The coefficient of static friction is 0.50 and the coefficient of kinetic friction is 0.40. One end of the plank is raised so the plank makes an angle of 30° with the horizontal. Find the minimum force that can be applied parallel to the plane to hold the crate at rest. a. 4.49N b. 0 c. 2.29N d. 3.29N e. 5.59N

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT