February 27, 2019
XI Physics Guess Paper 2019
February 24, 2019
Ladder Problem Physics Solved In Urdu/Hindi
How to Solve Ladder problems in physics is explained by using following three examples.
Q.8: A uniform ladder of length l and weight W = 50 N rests against a smooth vertical wall. If the coefficient of friction between the ladder and the ground is 0.40, find the minimum angle θmin such that the ladder may not slip.
Q.9: A ladder with a uniform density and a mass ‘m’ rests against a frictionless vertical wall at an angle of 60o. The lower end rests on a flat surface where the coefficient of friction (static) is 0.40. A student with a mass (M = 2m) attempts to climb the ladder. What fraction of the length ‘L’ of the ladder will the student have reached when the ladder begins to slip?
Q.11: A uniform horizontal beam of length 8m and weighing 200N is pivoted at the wall with its far end supported by a cable that makes an angle of 53o with the horizontal. If a person weighing 600N stands 2m from the wall, find the tension and the reaction force at the pivot.
Q.8: A uniform ladder of length l and weight W = 50 N rests against a smooth vertical wall. If the coefficient of friction between the ladder and the ground is 0.40, find the minimum angle θmin such that the ladder may not slip.
Q.9: A ladder with a uniform density and a mass ‘m’ rests against a frictionless vertical wall at an angle of 60o. The lower end rests on a flat surface where the coefficient of friction (static) is 0.40. A student with a mass (M = 2m) attempts to climb the ladder. What fraction of the length ‘L’ of the ladder will the student have reached when the ladder begins to slip?
Q.11: A uniform horizontal beam of length 8m and weighing 200N is pivoted at the wall with its far end supported by a cable that makes an angle of 53o with the horizontal. If a person weighing 600N stands 2m from the wall, find the tension and the reaction force at the pivot.
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