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Author Question: Doug hits a hockey puck, giving it an initial velocity of 7.0 m/s. If the coefficient of kinetic ... (Read 81 times)

nevelica

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on: Jul 28, 2018
Doug hits a hockey puck, giving it an initial velocity of 7.0 m/s. If the coefficient of kinetic friction between ice and puck is 0.050, how far will the puck slide before stopping?
 a. 19 m
  c. 37 m
  b. 25 m
  d. 50 m

Question 2

A horizontal force of 750 N is needed to overcome the force of static friction between a level floor and a 250-kg crate. What is the acceleration of the crate if the 750-N force is maintained after the crate begins to move and the coefficient of kinetic friction is 0.16?
 a. 1.8 m/s2
  c. 3.0 m/s2
  b. 1.4 m/s2
  d. 2.1 m/s2


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milbourne11

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

D

Answer to Question 2

B


nevelica

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Reply 2 on: Jul 28, 2018
Gracias!

mochi09

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Reply 3 on: Yesterday
:D TYSM

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