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Author Question: The figure shows a block on an inclined plane. What is the expression for the normal force ... (Read 25 times)

Haya94

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on: Jul 28, 2018
The figure shows a block on an inclined plane.
 
  What is the expression for the normal force acting on the block?
   
  a.
  Mg
   
  b.
  Mgcos
   
  c.
  Mgsin
   
  d.
  Mgtan

Question 2

A disk of mass m moving in the positive x direction collides with a stationary disk, also of mass m. The first disk moves in a direction 1 with respect to the x axis, and the second disk moves off in a direction of 2 below the x axis, as shown in the figure.
 
  If v = 10 m/s, 1 = 30, and v1f = 8 m/s, what is v2f?
   
  a.
  6.9 m/s
   
  b.
  6.1 m/s
   
  c.
  2.0 m/s
   
  d.
  8.7 m/s


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mcni194

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

b

Answer to Question 2

b


Haya94

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Reply 2 on: Jul 28, 2018
Excellent

nathang24

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Reply 3 on: Yesterday
Wow, this really help

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