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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

When a ceiling fan is switched on, it makes 10 rotations in the first 4 s (starting from rest, with uniform angular acceleration). How many rotations will it make in the next 4 s?

Answer: (D)

Solution

From rest, . In the first 4 s, (giving 10 rotations); in the first 8 s

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Question ID VK-157802