Multiple Choice
A pile driver drives a post into the ground.The mass of the pile driver is 2500 kg,and it is dropped through a height of 8.0 m on each stroke.If the resisting force of the ground is 2.0 × 106 N,how far is the post driven in on each stroke?
A) 4.9 cm
B) 9.9 cm
C) 16 cm
D) 49 cm
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q51: Samantha pushes a 60-N crate up a
Q52: A baseball catcher puts on an exhibition
Q53: A jet engine develops 2.0 × 10<sup>5</sup>
Q54: A spring with spring constant k is
Q56: Four different compact fluorescent bulbs and their
Q57: A simple pendulum,2.0 m in length,is released
Q58: A 100-W light bulb is left on
Q60: A girl and her bicycle have a
Q61: A 15.0-kg crate,initially at rest,slides down a
Q66: A pendulum consists of a mass m