This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A horizontal force of 1000 N is needed to overcome the force of static friction between a level ... (Read 144 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
on: Jul 28, 2018
A horizontal force of 1000 N is needed to overcome the force of static friction between a level floor and a 250-kg crate. If g = 9.8 m/s2, what is the coefficient of static friction?
 a. 4.0
  c. 0.41
  b. 0.51
  d. 0.31

Question 2

A block of mass 5.00 kg rests on a horizontal surface where the coefficient of kinetic friction between the two is 0.200 . A string attached to the block is pulled horizontally, resulting in a 3.00 m/s2 acceleration by the block. Find the tension in the string. (g = 9.80 m/s2)
 a. 0.200 N
  c. 19.8 N
  b. 9.80 N
  d. 24.8 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jointhecircus

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


naturalchemist

  • Member
  • Posts: 542
Reply 2 on: Jul 28, 2018
Wow, this really help

jackie

  • Member
  • Posts: 324
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Mechanisms of pain at the nociceptor level Mechanisms of pain at the nociceptor level
Pressure gradient force Pressure gradient force
Many U.S. regions under threat due to changes in sea level Many U.S. regions under threat due to changes in sea level
1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ... 1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ...
A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ... A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ...
Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ... Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ...
Video: Brain Anatomy Animation (Part 2 of 2)

For a complete list of videos, visit our video library