A simple pendulum consists of a small object ofmass 3.2 kg hanging at the end of

Question

   A simple pendulum consists of a small object ofmass 3.2 kg hanging at the end of a2.0 m long light string that is connected to a pivot point. (a) Calculate the magnitude of the torque (dueto the force of gravity) about this pivot point when the stringmakes a 6.5° angle with the vertical.
1 N·m

(b) Does the torque increase or decrease as the angle increase?
2 increase decrease  

(c)Explain your answer.
3 (a) Calculate the magnitude of the torque (dueto the force of gravity) about this pivot point when the stringmakes a 6.5° angle with the vertical.
1 N·m

(b) Does the torque increase or decrease as the angle increase?
2 increase decrease  

(c)Explain your answer.
3

Explanation / Answer

(a) torque = mgL sin =   3.2 * 9.80 * 2.0 * sin6.5  =    7.10N-m . (b) increases... . (c) because sin increases as the angle increases. Sothe torque increases also.

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