Question

A simple pendulum of length $I$ and mass (bob) $M$ is oscillating in a plane about a vertical line between angular limits $-\varphi$ and $\varphi$. For an angular displacement $\theta (\left|\theta \right|<\varphi )$ the tension in the string and velocity of the bob are T and v respectively. The following relations:

• A. $T\cos \theta =Mg$
• B. $T-Mg\cos \theta =\frac{M{v}^2}{L}$
• C. $Tangential$ $acc.=g\sin \theta$
• D. $T=Mg\cos \theta$

Answer 1

Answer: (B), (C)

The correct options are
B $T-Mg\cos \theta =\frac{M{v}^2}{L}$
C $Tangential$ $acc.=g\sin \theta$