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Author Question: A 2-kg ball is held 4 m above the ground. Relative to the ground its potential energy is A) 6 J. ... (Read 76 times)

skymedlock

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on: Jul 29, 2018
A 2-kg ball is held 4 m above the ground. Relative to the ground its potential energy is
 
  A) 6 J.
  B) 8 J.
  C) 32 J.
  D) 80 J.
  E) more than 80 J.

Question 2

A clerk can lift cylindrical packages 1 meter vertically, or can roll them up a 2-meter-long ramp to the same elevation. With the ramp, the applied force required is about
 
  A) half as much.
  B) the same.
  C) twice as much.
  D) four times as much.


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Jadwiga9

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

Answer: D

Answer to Question 2

Answer: A


skymedlock

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  • Posts: 561
Reply 2 on: Jul 29, 2018
Wow, this really help

fatboyy09

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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