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# In Active Example 11-3, suppose the ladder is uniform, 4.0

ISBN: 9780321541635 54

## Solution for problem 99GP Chapter 11

Physics with MasteringPhysics | 4th Edition

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Problem 99GP

Problem 99GP

In Active Example 11-3, suppose the ladder is uniform, 4.0 m long, and weighs 60.0 N. Find the forces exerted on the ladder when the person is (a) halfway up the ladder and (b) three-fourths of the way up the ladder.

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Nonconservative Forces Work Done By Nonconservative Forces ● In the presence of non-conservative forces, the total mechanical energy is not conserved: ○ W totalW conservativnonconservative ○ W = − ΔU + W = ΔK total nc ○ W nc ΔK + ΔU = ΔE Examples ● What height H must we release the car if it just makes it around the circular loop of radius R ● A shot put (m = 7.26 kg) is shot at an angle of 43.4 degrees and released from a height of 1.82 m above ground level then it lands with a final velocity of 20m/s. It lands a horizontal distance of 17.7 m from the release point. With what speed does the shot put leave the thrower’s hand ● A block of mass

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In Active Example 11-3, suppose the ladder is uniform, 4.0