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Author Question: An airplane is flying with constant speed along a horizontal circle. Is the direction of its ... (Read 178 times)

biggirl4568

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on: Jul 27, 2018
An airplane is flying with constant speed along a horizontal circle. Is the direction of its acceleration constant?
 
  What will be an ideal response?

Question 2

You hit a tennis ball over the net. When the ball reaches its maximum height, its speed is
 
  A) equal to its initial speed.
  B) less than its initial speed.
  C) greater than its initial speed.
  D) zero.
  E) gt.


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Smiles0805

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Reply #1 on: Jul 27, 2018
Answer to Question 1

No. The acceleration is directed towards the center of the circle, so the acceleration vector rotates as the body rotates.

Answer to Question 2

B


biggirl4568

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

jackie

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Reply 3 on: Yesterday
Excellent

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