- #1
songoku
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- Homework Statement
- A pendulum bob is released from point P. As it swings down, the string strikes a peg and the bob swings up in a different arc on the other side as shown (please see below). The bob will swing
A. up to a lesser height than P.
B. up to the same height as P.
C. up to a greater height than P.
D. round and round the peg
- Relevant Equations
- Conservation of energy
By considering conservation of energy, my answer is (B). But the solution states the answer is (A)
Is it because there will be loss of some of the KE when the string hits the peg so making answer (A) is better than answer (B)? The question itself does not state about friction
Thanks