A uniform ladder is 10 m long and weighing 50 N rests against a smooth vertical

Question

A uniform ladder is 10 m long and weighing 50 N rests against a smooth vertical wall . If the ladder is just the verge of slipping when it makes a 50 angle with the ground, find the coefficient of the static friction between the ladder and ground.

Magnitude of the force of wall = 21 N

Static Friction = 0.420

A. The question is: Will the weight of ladder or person determine If the ladder will be more likely to fall due to the weight of person or ladder

B. What is the max weight the person can be before the ladder will slip

Please give detail explanation. Thank You !

Explanation / Answer

a)yes weight will determine when it will fall b)(mg+50)*5cos50=21*10sin 50 we have equated the torque about the point of resting the ground..thanks

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