engineering recuitment UPCL AE (E&M) 2021 Mock Test Engineering Mechanics Equilibrium and Friction Friction
If a ladder of length 5 m weighing 250 N is placed against a smooth vertical wall having coefficient of friction between it and floor is 0.3, then what is the maximum force of friction available at the point of contact between the ladder and floor?
1
75 N
2
50 N
3
35 N
4
25 N