Answered: *15-40. The boy jumps off the flat car… | bartleby

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*15-40. The boy jumps off the flat car at A with a velocity
of v = 4 ft/s relative to the car as shown. If he lands on the
second flat car B, determine the final speed of both cars
after the motion. Each car has a weight of 80 lb. The boy's
weight is 60 lb. Both cars are originally at rest. Neglect the
mass of the car's wheels.
v = 4 ft/s
13
12

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