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Q.

The diagram shows a CD rotating clockwise (as seen from above) in the CD-player. After turning it off, the CD slows down. Assuming it has not come to a stop yet, the direction of the acceleration of point P at this instance is 

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a

↘

b

↓

c

↗

d

→

answer is A.

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Detailed Solution

Net acceleration is a as shown.

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