« previous next »

Author Question: A 400-N crate rests on a ramp; the maximum angle just before it slips is 15.0 with the horizontal. ... (Read 85 times)

stevenposner

  • Hero Member
  • *****
  • Posts: 608
on: Jul 28, 2018
A 400-N crate rests on a ramp; the maximum angle just before it slips is 15.0 with the horizontal. What is the coefficient of static friction between crate and ramp surfaces?
 a. 3.7
  b. 0.47
  c. 2.1
  d. 0.27
  e. 0.40

Question 2

A 7.00-kg mass is placed on a 28.0 incline and friction keeps it from sliding. The coefficient of static friction in this case is 0.574, and the coefficient of sliding friction is 0.528 . What is the frictional force in this situation?
 a. 32.2 N
  b. 60.6 N
  c. 32.0 N
  d. 34.8 N
  e. 3.29 N


randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

stevenposner

  • Hero Member
  • *****
  • Posts: 608
Reply #2 on: Jul 28, 2018
TY


randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Location of point of maximum effort Location of point of maximum effort
How to find an angle in radians degrees for any given reciprocal trigonometric function How to find an angle in radians degrees for any given reciprocal trigonometric function
How to quickly determine the maximum or minimum value of a quadratic equation in standard form How to quickly determine the maximum or minimum value of a quadratic equation in standard form
End of the last Pleistocene glacial maximum End of the last Pleistocene glacial maximum
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative ... A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative ...
Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ... Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ...
Video: Bulk flow - factors that influence bulk flow

For a complete list of videos, visit our video library