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NEET 2016 Physics question

PhysicsWork, Energy and PowerNEET 2016

A body of mass 1 kg begins to move under the action of a time dependent force , where and are unit vectors along x and y axis. What power will be developed by the force at the time ?

Answer: (4)

Solution

With , acceleration . Starting from rest, the velocity is $ =

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Question ID VK-091873