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A block of mass of 2.0 kg kept at rest on an inclined plane of inclination 37^° is pulled up the plane by applying a costant force of 20 N parallel to the incline. The force acts for one second. (a) Show that the work done by the applied force does not exceed 40 J. (b) Find the workdone by the force of gravity in that one second if the work done by the applied force is 40 J. (c) Find the kinetic energy of the block at the instant the force ceases to act. Take g -10 m/s

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Solution

99996115546-0-099996115546-0-1

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