Question

A U-238 nucleus originally at rest decay by emitting an alpa particle say aa velocity of vm/s the recoil velocity of the residual nucleus is

Answer 1

recoil of the residual nucleus is -4v/234..

this is bymomentum conservation..

final momentum=initial momentum

4v+234v'=0

4v=-234v'

v'=-4v/234 m/s



plzz mark as brainliest answer