In the figure, the rock weighs 115 lb and is lifted 1 ft by the lever. F Fulcrum 3F 3d (a) How much work is done? ft-lb (b) The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on that end? lb

In the figure, the rock weighs 115 lb and is lifted 1 ft by the lever. F Fulcrum 3F 3d (a) How much work is done? ft-lb (b) The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on that end? lb

Name: In the figure, the rock weighs 115 lb and is lifted 1 ft by the lever
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Description: In the figure, the rock weighs 115 lb and is lifted 1 ft by the lever.FFulcrum3F3d(a) How much work is done?ft-lb(b) The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on that end?Ib

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter6: Energy Of A System

Section6.2: Work Done By A Constant Force

Problem 6.2QQ

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