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Please answer the pinned question friends |
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Answer» Given:Velocity vs Displacement relationship as :Mass of OBJECT = 2 kgTo find:Work DONE in time 1 - 2 seconds.Concept:As per Work Energy Theorem , we can SAY that work done by all forces is equal to the change in Kinetic Energy in the specified time interval.Calculation:Assuming s = 0 , when t = 0 ;So our displacement vs time Equation comes as :So at t = 2 seconds , we get :Now PUTTING the values in work energy theorem :Work done = Change in KESO final answer : |
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