This topic contains a solution. Click here to go to the answer

Author Question: A 12-kg mass is placed on a 25.0 incline, and friction keeps it from sliding. The coefficient of ... (Read 258 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
A 12-kg mass is placed on a 25.0 incline, and friction keeps it from sliding. The coefficient of static friction in this case is 0.580, and the coefficient of sliding friction is 0.520 . What is the frictional force in this situation?
 a. 55.4 N
  c. 49.7 N
  b. 107 N
  d. 61.2 N

Question 2

Two objects, A and B, are placed on an inclined plane that can be rotated to different angles of elevation. A starts to slide at twice the angle of elevation that B starts sliding. The respective coefficients for static friction for A and B are mA and mB. Choose the last answer that is correct.
 a. mB > mA
  c. mB = 2 mA
  b. mA > mB
  d. mA = 2 mB



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emilymalinowski12

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

C

Answer to Question 2

B




jon_i

  • Member
  • Posts: 549
Reply 2 on: Jul 28, 2018
Gracias!


carojassy25

  • Member
  • Posts: 299
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

For a complete list of videos, visit our video library