A simple pendulum consists of a small object of mass 2.4 kg hanging at the end of a 2.0 m long light string that is connected to a pivot point.
(a) Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string makes a 3.0° angle with the vertical.
(b) Does the torque increase or decrease as the angle increase?
(c)Explain your answer.
The Attempt at a Solution
a. A=2.0m sin 3.0
τ=0.105m (2.4kg)(9.8m/s2)sin 3.0
τ= 0.129 Nm
b. angle will increase
c. Since angle increases, sin of the angle also increases