Physics HELP!
posted by Brad .
A simple pendulum consists of a small object of mass 7.40 kg hanging at the end of a 2.10 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 3.00° angle with the vertical

What is mg*length*cosineAngle

I got 152.08 and its saying its wrong!

M= m•g•L•sinα=7.4•9.8•2.1•sin3°=7.97 N•m
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