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Author Question: Someone hits a tether ball to make it spin around a pole. The cord that attaches the tether ball to ... (Read 58 times)

HCHenry

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on: Jul 28, 2018
Someone hits a tether ball to make it spin around a pole. The cord that attaches the tether ball to the central pole then winds around the pole. What happens to the angular speed of the tether ball during this process?
  1.It decreases.
  2.It increases.
  3.It remains constant.
  4.It cannot be determined.

Question 2

A popular demonstration involves a professor, initially motionless, standing on a low-friction turntable and holding a bicycle wheel that is spinning horizontally. What happens when the professor flips the bicycle wheel so that it is spinning in the other direction?
  1.She starts to spin in the same direction as the initial direction of the bicycle wheel.
  2.She starts to spin in the bicycle wheel's new spin direction.
  3.She remains stationary.
  4.It is impossible to tell because it depends on how fast the bicycle wheel initially spins.


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ryrychapman11

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

2

Answer to Question 2

1


HCHenry

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Reply 2 on: Jul 28, 2018
:D TYSM

daiying98

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Reply 3 on: Yesterday
Wow, this really help

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