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Author Question: The force of a boxer's punch is greater when it hits a A) small punching bag. B) heavy punching ... (Read 62 times)

fox

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on: Jul 29, 2018
The force of a boxer's punch is greater when it hits a
 
  A) small punching bag.
  B) heavy punching bag.
  C) both forces would be the same for the same effort

Question 2

If you drop a pencil while riding on a smooth riding bus, why does the pencil land at the same place it would if the bus were at rest?
 
  What will be an ideal response?


juiceman1987

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

Answer: B

Answer to Question 2

Answer: In accord with Newton's first law, since in both cases there is no horizontal force on the dropped pencil, no change of velocity occurs horizontally. The dropped pencil in the moving bus simply keeps up with you as you move, not changing its velocity in the horizontal direction.


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