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Newton's laws of motion.

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An individual weighing 600 N stands still with her hips flexed. Her hip extensor muscles are contracting with a force of 3000 N, and her ankle plantarflexor muscles with a force of 3200 N. What is the magnitude of the ground reaction force acting on her?

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As the individual stands still means no acceleration, hence according to Newton's law of ...

Solution Summary

The conceptual question about force is explained and answered.