Question

A pendulum swings along path WXYZ and back again.

Resistive forces can be ignored.

which statement describes the Total energy of the bob?
A. it has a maximum value at X
B. it has a maximum value at Y
C. it has a maximum value at Z
D. it has the same value at W,X,Y and Z

- give answer with explanation please :) -
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Answer 1

It has max kinetic energy at X cause it has moved from W to X . It has max potential energy at W and Z cause it has max height from the ground.