potential energy help please?
A 1.70 kg ball is attached to a ceiling by a 0.85 m long string. The height of the room is 3.00 m. What is the gravitational potential energy of the ball relative to each of the following?
(a) the ceiling
____J
(b) the floor
____ J
(c) a point at the same elevation as the ball
____J
More Questions From This User See All
Answers & Comments
Verified answer
a) PE = mgh = –(1.7)(9.8)(0.85)
b) PE = mgh = (1.7)(9.8)(3–0.85)
c) PE = mgh = 0