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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A particle of mass 2 kg is on a smooth horizontal table and moves in a circular path of radius 0.6 m. The height of the table from the ground is 0.8 m. If the angular speed of the particle is , the magnitude of its angular momentum about a point on the ground right under the centre of the circle is

Answer: (A)

Solution

Speed v = ω r = 7.2 m/s, tangent to the circle, hence perpendicular to the position vector (0.6, 0.8) of magnitude 1.0 m from the

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Question ID VK-040762