Aman in a gym is holding an 8.0-kg weight at arm's length, a distance of 0.55 m from his shoulder joint. what is the torque about his shoulder joint due to the weight if his arm is held at 30° below the horizontal?

Explanation:

given,

mass of the weight = 8 Kg

distance = 0.55 m

angle below horizontal = 30°

torque about shoulder

torque about his shoulder join is equal to  

this is poiselle's equation from fluid mechanic in physics. mech eng

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