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Question

The diagram above shows a toy airplane from above flying around in a circular path at constant speed in the direction indicated by the arrows. Which of the following tables correctly describes the points at which the plane's velocity is south and at which its acceleration is south respectively?

A

3,2

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B

1,4

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C

3,4

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D

1,2

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E

2,3

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Solution

The correct option is A 3,2
The the direction of velocity of plane is tangent the path at any point, and directed counter clockwise.
Hence velocity is towards south at point 3.
The acceleration of plane at any point is directed towards the center of circle from that point.
Hence acceleration is towards south at point 2.

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