Question

a simple pendulum of length L and mass (bob)M is suspended vertically the string makes an angle q with the vertical the restoring force acting on the pendulam is​

Answer 1

Answer:

Explanation:

When pendulum is suspended by a string of length L  and makes and angle

$q$ with the vertical then at certain angle

we can resolve the component of weight Mg in to

$Mg\cos q$ and $Mg\sin q$

$Mg\cos q$ will be along the string while the $Mg\sin q$ component will provide the restoring force.