Question

A man thinks to remain in equilibrium by pushing in the his hands and feet against two vertical
paralleled walls.
[ 1 1
1) He must exert equal forces on both walls
2) The forces of friction at both walls must be equal
3) Friction must be present on both walls
a) 1 and 2 are correct b) 1 and 3 are correct c) 2 and 3 are correct d) all correct​

Answer 1

Answer:

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Explanation:

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