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Question

A solid sphere of radius R is lying on a horizontal smooth surface. The sphere is hit by stick held horizontally at a height of R2 above the center. The sphere moves forward with a velocity v0 and angular velocity ω0 about its center. Then ω0 =


A

5v014R

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B

15v04R

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C

v0R

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D

5v04R

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Solution

The correct option is D

5v04R


Impulse I=mv0 --- (1) and angular impulse about the center

J=I×R2=25mR2 ω0 --- (2)

Solving 1 and 2, we get 5v04R


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