How to solve for torque when it's a 3-d coordinate problem in physics??

Posted on 2015-08-31 12:31:00 in Physics by FERNANDO

The numbers below provides the three dimensional coordinates (x, y, and z) of the elbow joint, the center of pressure (COP) of the hand, and the three dimensional (AP, ML, and vertical) ground reaction force applied to the hand during a push up. Based on this information:

Elbow Joint Location (m) (0.0, -0.5, 0.25)
COP Location (m) (0.05, 0.05, 0.0)
GRF (N) 50, 25, 400

a. How should a free body diagram of this situation be done? ?
b.How to solve for the torque that is generated at the elbow joint at this instant.

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