A simple pendulum of mass m moves along an arc pf a circle radius R in a vertical plane as shown above. What is the work done by gravity in a downward swing through the angle q to 0 degree
A.
mgR sinθ
B.
MgR (1- cos θ)
C.
mgR
D.
mgR (1 - sinθ)
Correct Answer: Option B
Explanation
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