A uniform thin flat isolated disc is floating in spece. It has radius R and mass m. A force F is applied to it a distanced `=R/2` from the centre in the y-direction Treat this problem as two-dimensional. At the instant shown the:

Options

A. acceleration of the centre of the disc is `f//m`
B. angular acceleration of the disk is `F//mR`
C. acceleration of leftmost point on the disc is zero
D. Point which is instantaneously unaccelerated is the rightmost point.

Answer

A, B, C

Explanation

F=ma……(1)
`FR/2=1/2mR^(2)alpha…..(2)`
`a_(P)=a-alphaR=0`