(Solved):   The boy jumps off the flat car at \( A \) with a velocity of \( v=4 \mathrm{ft} / \mathrm{ ...

 

The boy jumps off the flat car at \( A \) with a velocity of \( v=4 \mathrm{ft} / \mathrm{s} \) relative to the car as shown. He lands on the second flat car B. Each car has a weight of \( 82 \mathrm{lb} \). The boya's weight is \( 60 \mathrm{lb} \). Both cars are originally at rest. Determine the speed of car \( A \) Neglect the mass of the carDs wheels: (Fugure 1) Express your answer to three significant figures and include the appropriate units. Figure Part B Determine the speed of car \( B \) Express your answer to three significant figures and include the appropriate units.