Can anyone explain me clearly about the energy and it's changes in Simple Pendulum? Plz!

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1 Answer
Mar 22, 2018

Answer:

See below.

Explanation:

The initial strike is done with kinetic energy

#1/2 m v^2 = l(1-cos theta)m g approx 1/2l theta^2 m g#

along the streaking process

#mv_A +mv_B=mv'_A+m v'_B#

with #m_B = 0# just before and #v'_A = 0# just after the strike

hence the graphic reproducing qualitatively the energy transference is 2)