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JEE Main 2012 Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main 2012

A satellite moving with velocity v in a force free space collects stationary interplanetary dust at a rate of where M is the mass of (satellite + dust) at that instant. The instantaneous acceleration of the satellite is

Answer: (2)

Solution

No external force: $ = 0 ⇒ M =

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Question ID VK-103627