Question

Question #81c60

Answer 1

The torque is `0.98 N*m`.

Explanation:

The weight of the bob is `0.5 kg*9.8 m/s^2 = 4.9 N`.

The component of that weight that is perpendicular to the pendulum rod is `4.9 N*cos60 = 2.45 N`.

The distance from the pivot to the bob is 0.4 m.

Torque is calculated as follows
`"Torque" = "Perpendicular force"*"lever length"`
`"Torque" = 2.45 N*0.4 m = 0.98 N*m`

I hope this helps,
Steve