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Author Question: A horizontal force of 1000 N is needed to overcome the force of static friction between a level ... (Read 112 times)

naturalchemist

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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


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jointhecircus

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


naturalchemist

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Reply 2 on: Jul 28, 2018
Gracias!

xiazhe

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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