Nina wants to lean a ladder of mass 15 kg and length 8.0 m against a wall.
Question:
Nina wants to lean a ladder of mass 15 kg and length 8.0 m against a wall. She lifts one end over her head. Then she “walks” her hands from rung to rung toward the other end, which rests on the ground.
(a) When she is holding the ladder 2.0 m from the end where she started, what vertical force does she exert on the ladder?
(b) To “walk” more than 4.0 m along the ladder, she will need a helper. Explain why. What should the helper do?
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When she is holding the ladder 20 m from the end where she st...View the full answer
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Labindao Antoque
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College Physics With An Integrated Approach To Forces And Kinematics
ISBN: 978-1260547719
5th Edition
Authors: Alan Giambattista
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