A ladder, leaning against a wall, makes a 60° angle with the ground. When is it more likely to slip: when a person stands on the ladder near the top or near the bottom? Explain.
The point where the ladder is in contact with the ground is taken as the pivot point. And the equilibrium condition equation is written according to that pivot.
The torque of the man increases as the man climbs up to the ladder. Because force arm dm increases. If the torque of the man increases, the turning effect of the weight of the man increases.
So the higher the man the more probable the slip of the ladder.