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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

A particle of mass 100 g is thrown vertically upwards with a speed of 5 ms⁻¹. The work done by the force of gravity during the time the particle goes up is

Answer: (B)

Solution

Height risen h = u²/2g = 25/(2×9.8) ≈ 1.28 m. Work by gravity = −mgh =

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Question ID VK-153563