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JEE Main Physics question

PhysicsMotion in a Straight LineJEE Main

A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to

Answer: (A)

Solution

Given a = −kx, so v(dv/dx) = −kx ⟹ ∫v dv = −k∫x dx ⟹ (v²−v₀²)/2 =

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Question ID VK-153587