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Author Question: A cannon recoils while firing a cannonball. The speed of the cannon's recoil is relatively small ... (Read 145 times)

Themember4

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

Answer: C

Answer to Question 2

Answer: B


Themember4

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Reply #2 on: Jul 29, 2018
TY


moormoney

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Reply #3 on: Jul 29, 2018
You're welcome


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