31 JEE Main 2019 Rotational Motion previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 previous-year questions from the Rotational Motion chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Rotational Motion chapter hub.
An equilateral triangle ABC is cut from a thin solid sheet of wood. (See figure) D, E and F are the mid-points of its s…
A stationary horizontal disc is free to rotate about its axis. When a torque is applied on it, its kinetic energy as a…
Two coaxial discs, having moments of inertia I 1 and I 1 2 , are rotating with respective angular velocities ω 1 a…
Two masses m and m 2 are connected at the two ends of a massless rigid rod of length l . The rod is suspended by a thin…
A metal coin of mass 5   g and radius 1   c m is fixed to a thin stick A B of negligible mass as shown in the…
A rod of length 50   c m is pivoted at one end. It is raised such that it makes an angle of 30 o from the horizont…
A slab is subjected to two forces F₁ and F₂ of same magnitude F as shown in the figure. Force F₂ is in XY- plane while…
The magnitude of torque on a particle of mass 1 ~kg is 2.5 Nm about the origin. If the force acting on it is 1 ~N, and…
Moment of inertia of a body about a given axis is 1.5   k g   m 2 . Initially the body is at rest. In order t…
Let the moment of inertia of a hollow cylinder of length 30   c m (inner radius 10   c m and outer radius 20…
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