On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts

perpendicular to the wall at its upper end

On a ladder resting on a rough ground and leaning against a smooth ver

1.	On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts
A.	downwards at its upper end
B.	upwards at its upper end
C.	perpendicular to the wall at its upper end
D.	zero at its upper end
Answer» E.

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On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts

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