A boy is running to the east and jumps into a stationary boat in a lake. Once the boy lands in the boat, the boat moves to the east. Which best compares the initial momentum of the boy with the final momentum of the boy/boat system?
Answer
A
The initial momentum of the boy is equal to the boy/boat because the final velocity of the boat is less than the initial velocity of the boy.
B
The initial momentum of the boy is less than the boy/boat because the boy has less mass than the boat.
C
The initial momentum of the boy is zero because the velocity cancels with the mass of the boy.
D
The initial momentum of the boy is greater than the boy/boat because the boy has a greater velocity than the boat.