Helen asks…I need your help!What is the answer to these questions?• Object A strikes object B, which is initially at rest. The maximum transfer o energy from A to B occurs when mA is
a. less than mB
b. equal to mB
c. greater than mB
d. any of the above, depending on the speed of A
• A 1200 kg car moving north at 50 km/h collides with a 1600-kg car moving east at 30 km/h. The cars stick together, and the wreckage moves off at an initial speed of
a. 27 km/h
b. 38 km/h
c. 39 km/h
d. 58
