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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

A body of mass 2 kg is projected at 20 ms⁻¹ at an angle 60° above the horizontal. The power due to the gravitational force at its highest point is [J & K CET 2006]

Answer: (A)

Solution

At the highest point, velocity is purely horizontal: v = u cos60° = 10 ms⁻¹. The power delivered by gravity equals **F**·**v**; interpreting the

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Question ID VK-153643