EBK PHYSICS FOR SCIENTISTS AND ENGINEER
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
6th Edition
ISBN: 9781319321710
Author: Mosca
Publisher: VST
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Chapter 12, Problem 34P
To determine

To Evaluate:The percent of the man who can climb the ladder before the ladder begins to slip.

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h L GAS A 45.0 kg sign hangs at the end of a bar where L = 3.10 meters in length. A cable attaches to the end of the horizontal bar and to a wall 2.70 meters above where the bar is attached to the wall. The bar has a mass of 13-kg. What is the tension in the cable? Give your answer in Newtons to 3 significant figures (no decimal places in this case).
A ladder of length L and negligible weight leans against a frictionless vertical wall making an angle O with the horizontal. The coefficient of friction between the ladder and the floor is µs. A man of weight W climbs up the ladder. Show that the maximum distance s he can climb before the ladder slips is given by s=µ„Ltan8.
A 5.00 m, uniform 20 kg ladder rests on a wall, making an angle of 55◦to the ground. There is no frictionalong the wall, but a coefficient of friction of 0.300 along the ground. How high can a 75.0 kg personclimb the ladder without it slipping?
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