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Author Question: What happens to centripetal force when speed decreases, in the special case that the object ... (Read 150 times)

washai

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on: Jul 28, 2018
What happens to centripetal force when speed decreases, in the special case that the object continues moving in a circle of the same radius?
 a. The force also decreases.
  b. The force increases.
  c. The radius cannot stay the same.
  d. The force sometimes stays the same and sometimes decreases.
  e. Speed does not affect centripetal force.

Question 2

How do we calculate centripetal acceleration?
 a. By calculating the acceleration at several points around the circle and averaging.
  b. By subtracting two velocity vectors separated by a short time interval.
  c. By adding two velocity vectors separated by a short time interval.
  d. By calculating the change in speed.
  e. By calculating the acceleration at several points around the circle and finding the sum.


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katheyjon

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Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

b


washai

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


katheyjon

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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