a ladder is resting on a rough ground and leaning against a smooth vertical wall. the force of friction will act Options: A . &nbsp Downward at its upper end B . &nbsp Upward at its upper end C . &nbsp Zero at its upper end D . &nbsp Perpendicular to the wall at its upper end

a ladder is resting on a rough ground and leaning against a smooth vertical wall

Question

A ladder is resting on a rough ground and leaning against a smooth vertical wall. the force of friction will act

Options:

A . Downward at its upper end

B . Upward at its upper end

C . Zero at its upper end

D . Perpendicular to the wall at its upper end

Answer: Option C

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