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Q
A particle is connected by an elastic string,
it is released from rest at point P
and fall to the lowest point Q
and then moving up and down.
Assume no energy loss,
Why the particle is NOT performing SHM between P and Q?
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If the particle cannot go back to point P,
there is energy loss,
therefore the particle must be moving between P and Q.
The exam report of 2009 point out that 50% of the candidates don't understand SHM. And thus there is a wonderful statement in the General Comment.
Many candidates did not understand the very basic concept of Physics-_-!!!
(Including me-_-|||)