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Author Question: A cannon recoils while firing a cannonball. The speed of the cannon's recoil is relatively small ... (Read 63 times)

Themember4

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A cannon recoils while firing a cannonball. The speed of the cannon's recoil is relatively small because the
 
  A) force against the cannon is smaller than against the ball.
  B) momentum is mainly concentrated in the cannonball.
  C) cannon has much more mass than the cannonball.
  D) momentum of the cannon is smaller.

Question 2

The average braking force of a 1000-kg car moving at 10 m/s braking to a stop in 5 s is
 
  A) 1000 N.
  B) 2000 N.
  C) 3000 N.
  D) 4000 N.
  E) 5000 N.



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moormoney

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Answer to Question 1

Answer: C

Answer to Question 2

Answer: B





 

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