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Author Question: A hockey puck moving at 7.00 m/s coasts to a halt in 80.0 m on a smooth ice surface. What is the ... (Read 72 times)

melina_rosy

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on: Jul 28, 2018
A hockey puck moving at 7.00 m/s coasts to a halt in 80.0 m on a smooth ice surface. What is the coefficient of friction between the ice and the puck?
 a.  = 0.109
  b.  = 0.031
  c.  = 0.063
  d.  = 0.094
  e.  = 0.156

Question 2

A worker pulls a 350-N packing crate at constant velocity across a rough floor by exerting a force F = 200.0 N at an angle of 30.0 above the horizontal. What is the coefficient of kinetic friction of the floor?
 a. 0.793
  b. 0.693
  c. 0.593
  d. 1.386
  e. 0.400


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Ahernandez18

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

b

Answer to Question 2

b


melina_rosy

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Ahernandez18

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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