A uniform rod of mass M is hinged at its upper end. A particle of mass m moving horizontally strikes the rod at its mid point elastically. If the particle comes to rest after collision find the value of M/m?

Options

A. `3//4`
B. `4//3`
C. `2//3`
D. None of these

Answer

D

Explanation

`mvl/2=(Ml^(2))/8 omega`
`e=1=((omegal)/2-0)/(v-0)`
`rArr v=(omegal)/2 rArr m (omegal^(2))/4 =(Ml^(2) omega)/3rArr `
`M/m=3/4`