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In the figure, the rock weighs 145 lb and is lifted 1 ft by the lever. Fulcrum 3F (a) How much work is done?
In the figure, the rock weighs 145 lb and is lifted 1 ft by the lever. Fulcrum 3F (a) How much work is done? ft-lb F 3d (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 Need Help? Read It
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Fundamentals of Physics
Authors: Jearl Walker, Halliday Resnick
8th Extended edition
471758019, 978-0471758013
