What is the torque acting on the bob of mass m of a simple pendulum Of length l, when the string of the pendulum makes an angle thetawith the vertical ? When is the torque (i) zero and (ii) maximum.

What is the torque acting on the bob of mass m of a simple pendulum Of

1.	What is the torque acting on the bob of mass m of a simple pendulum Of length l, when the string of the pendulum makes an angle thetawith the vertical ? When is the torque (i) zero and (ii) maximum.
Answer» SOLUTION :`TAU =rF =l.sintheta xx mg, tau_("min") = 0`, when `theta =0, tau_("MAX") = MGL` when `theta = 90^(@)`