Finding Velocity given the initial velocity and weight

dimanche 29 juin 2014

1. The problem statement, all variables and given/known data

An 80-kilogram man jumps off a raft that weighs 100 kg. His initial velocity from jumping is 7 meters per second. Assuming that the friction resistance of the water is zero, the velocity of the raft after the man jumps will be?





2. Relevant equations

Vf^2= Vi^2 + 2aD



3. The attempt at a solution

I am trying to figure out the velocity of that raft after the man jumps, the question is confusing me on which variable I need to solve the problem. Any help?





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