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Author Question: A 1000-kg car is traveling north at 20.0 m/s. A 1500-kg car is traveling north at 36.0 m/s. The ... (Read 114 times)

ishan

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on: Jul 29, 2018
A 1000-kg car is traveling north at 20.0 m/s. A 1500-kg car is traveling north at 36.0 m/s. The 1500-kg collides with the rear of the 1000-kg car and they lock together.
 
  Ignoring external forces acting during the collision, what is the velocity of the cars immediately after the collision? A)
 
  56.0 m/s north
  B)
 
  29.6 m/s north
  C)
 
  13.6 m/s south
  D)
 
  8.00 m/s south
  E)
 
  28.0 m/s north

Question 2

A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0 above the horizontal. The ball leaves her hand 1.00 m above the ground. At what angle below the horizontal does the ball approach the ground?
 
  A)
 
  35.1
 
  B)
 
  38.6
 
  C)
 
  48.0
 
  D)
 
  40.0
 
  E)
 
  65.2


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TDubDCFL

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


ishan

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Reply 2 on: Jul 29, 2018
Excellent

Dominic

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Reply 3 on: Yesterday
Gracias!

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