engineering recuitment UPCL AE (E&M) 2021 Mock Test Engineering Mechanics Equilibrium and Friction Friction
On a ladder resting on a smooth ground and leaning against a vertical wall, the force of friction will be:
1
Away from the wall at its upper end
2
Towards the wall at its upper end
3
Upwards at its upper end
4
Downwards at its upper end