Author Question: The massive ram of a pile driver falling from rest strikes a pile with a speed that depends on the ... (Read 141 times)

clmills979 · **on:** Jul 29, 2018

The massive ram of a pile driver falling from rest strikes a pile with a speed that depends on the

A) initial height of the ram.
B) initial potential energy of the ram.
C) distance the ram falls.
D) all of the above

Question 2

A melon is tossed straight upward with 100 J of kinetic energy. If air resistance is negligible the melon will return to its initial level with a kinetic energy of

A) less than 100 J.
B) more than 100 J.
C) 100 J.
D) need more information