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Author Question: A barbell is easier to twist when its weights are a. close to the axis of rotation. b. near the ... (Read 33 times)

misspop

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on: Jul 29, 2018
A barbell is easier to twist when its weights are
 a. close to the axis of rotation.
  b. near the ends of the bar.
  c. heavy.
  d. light.
  e. none of the above.

Question 2

The total kinetic plus potential energy of a body
 a. can be negative.
  b. always stays constant if the body is freely falling.
  c. always stays constant if friction is acting.
  d. can remain constant even if the body's speed is decreasing.


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cat123

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

a, d

Answer to Question 2

a, b, d


misspop

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


cat123

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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