8
QuizMultiple Choice

Impulse and Momentum — Unit test

Question 8 • [HSPHY] Physics Sem 1 (26-27)

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.

Answer
A
The initial momentum of the boy is zero because the velocity cancels with the mass of the boy.
B
The initial momentum of the boy is greater than the boy/boat because the boy has a greater velocity than the boat.
C
The initial momentum of the boy is less than the boy/boat because the boy has less mass than the boat.
D
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.