- #1
NasuSama
- 326
- 3
Homework Statement
Joe, standing stationary on a beach, sees a small boat of mass M = 179 kg go by at constant speed V = 25.2 m/s. Tom, a man of mass m = 91.8 kg, stands at rest at the back of the boat. Suddenly Tom begins to run toward the front of the boat at speed vrel = 2.93 m/s relative to the boat. Find the speed of the boat v, relative to Joe, while Tom is running.
Homework Equations
O.K.
p = mv
The Attempt at a Solution
MV = MV_F + m(V - V_rel) [I thought that Tom is traveling at V - V_rel velocity]
MV - m(V - V_rel) = MV_F
V_F = MV - m(V - V_rel)/M
...But wrong answer.