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Author Question: A ball drops some distance and gains 30 J of kinetic energy. Do not ignore air resistance. How much ... (Read 66 times)

panfilo

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  • Posts: 572
on: Jul 29, 2018
A ball drops some distance and gains 30 J of kinetic energy. Do not ignore air resistance. How much gravitational potential energy did the ball lose?
 
  A) more than 30 J
  B) exactly 30 J
  C) less than 30 J
  D) Cannot be determined from the information given.

Question 2

An object is in free fall as soon as it is released, whether it is dropped from rest, thrown downward, or thrown upward.
 
  Indicate whether the statement is true or false


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iceage

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

A

Answer to Question 2

TRUE


panfilo

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  • Posts: 572
Reply 2 on: Jul 29, 2018
Wow, this really help

flexer1n1

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  • Posts: 373
Reply 3 on: Yesterday
Gracias!

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