The ram of a pile driver drops onto the top of an iron beam, driving it partway into the ground. The distance that the beam sinks into the ground depends on the
A. initial height of the ram.
B. initial potential energy of the ram.
C. kinetic energy of the ram when it first hits the beam.
D. all of the above
Answer:D
The ram of a pile driver drops onto the top of an iron beam, driving it partway into the ground. The distance that the beam sinks into the ground depends on the
A. initial height of the ram. B. initial potential energy of the ram. C. kinetic energy of the ram when it first hits the beam. D. all of the above