Q.

A uniform thin flat isolated disc is floating in space. It has radius R and mass m. A force F is applied to it at a distance d = (R/2) from the centre in the y-direction. Treat this problem as two-dimensional. Just after the force is applied :

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By Expert Faculty of Sri Chaitanya

acceleration of the centre of the disc is F/m

angular acceleration of the disc is F/mR

acceleration of leftmost point on the disc is zero

point which is instantaneously unaccelerated is the rightmost point

answer is 1,2,3.

(Detailed Solution Below)

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Detailed Solution

F=ma …(i)FR2=12mR2α …(ii)aP=a−αR=0

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