Question

A uniform ladder 6.8 m long weighing 430 N rests with one end on the ground and the other end against a perfectly smooth vertical wall. The ladder rises at 60.0 ∘ above the horizontal floor. A 720 N painter finds that she can climb 2.75 m up the ladder, measured along its length, before it begins to slip. A: What force does the wall exert on the ladder? B:Find the friction force that the floor exerts on the ladder. C:Find the normal force that the floor exerts on the ladder.

Answer 1

Explanation:

uniform ladder 7.0 m long weighing 450 N rests with one end on the ground and the other end against a perfectly smooth vertical wall. The ladder rises at a 60.0 degrees above the horizontal floor. A 750 N painter finds that she can climb 2.75 m up the ladder measured along its length, before it begins to slip. What is the friction force and normal force that the floor exerts on the ladder.