A 13 m ladder is placed against a smooth vertical wall with its lower end 5 m from the wall. What should be the minimum coefficient of friction between the ladder and the floor so that it remains in equilibrium?

A 13 m ladder is placed against a smooth vertical wall with its lower

1.	A 13 m ladder is placed against a smooth vertical wall with its lower end 5 m from the wall. What should be the minimum coefficient of friction between the ladder and the floor so that it remains in equilibrium?
Answer» 0.36 0.72 0.21 0.52 Answer :C