Two men of equal masses m stand on a platform of mass M. Both men jump with the same horizontal velocity with respect to the platform. Find the relation between velocities of the platform if they jump simultaneously and if they jump one after the other.
The Attempt at a Solution
Impulse is constant. At the initial point, impulse is 0. Thus: mv + mv = MV, if they jump simultaneously. If they don’t jump at the same time, mv = (M+m)V’. I think that my reasoning for the second case is not correct. Is this problem easier if it is considered from the point of the center of the masses?