An object of mass m is attached to string of length L. When it is released from point A, the object oscillates between points A and B. Which statement about the system consisting of the pendulum and the Earth is correct?
a.
The gravitational potential energy of the system is greatest at A and B.
b.
The kinetic energy of mass m is greatest at point O.
c.
The greatest rate of change of momentum occurs at A and B.
d.
All of the above are correct.
e.
Only (a) and (b) above are correct.
d
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