A ladder whose length L is 12m and whose mass m is 45kg rests against a wall. Its upper end is a distance h of 9.3m above the ground. The center of gravity of the ladder is one-third of the way up the ladder. A firefighter whose mass M is 72kg climbs halfway up to the ladder. Assume that the wall, but not the ground is frictionless. What forces are exerted on the ladder by the wall and by the ground?

A ladder whose length L is 12m and whose mass m is 45kg rests against a wall. Its upper end is a distance h of 9.3m above the ground. The center of gravity of the ladder is one-third of the way up the ladder. A firefighter whose mass M is 72kg climbs halfway up to the ladder. Assume that the wall, but not the ground is frictionless. What forces are exerted on the ladder by the wall and by the ground?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section: Chapter Questions

Problem 1STP

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