A Golf Ball Moving Forward with 1 Unit of Momentum

Multiple Choice

A golf ball moving forward with 1 unit of momentum strikes a heavy bowling ball that is initially at rest. After the golf ball bounces backward, the bowling ball is in motion with a momentum that must be

A) 1 unit.
B) more than 1 unit.
C) less than 1 unit.
The magnitude of the golf ball's momentum after collision must be somewhat less than 1 unit, for otherwise a violation would occur in the conservation of
D) energy.
E) momentum.
F) both.
G) neither.