39 JEE Main 2021 Rotational Motion previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2021 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.
A solid cylinder of mass m is wrapped with an inextensible light string and, is placed on a rough inclined plane as sho…
A body rolls down an inclined plane without slipping. The kinetic energy of rotation is 50 % of its translational kinet…
Moment of inertia M . I . of four bodies, having same mass and radius, are reported as; I 1 = M . I . of thin circular…
A mass M hangs on a massless rod of length l which rotates at a constant angular frequency. The mass M moves with stead…
Four identical solid spheres each of mass m and radius a are placed with their centres on the four corners of a square…
A body rotating with an angular speed of 600   rpm is uniformly accelerated to 1800   rpm in 10   sec .…
A cord is wound round the circumference of wheel of radius r , The axis of the wheel is horizontal and the moment of in…
A triangular plate is shown. A force F → = 4 i ^ - 3 j ^ is applied at point P . The torque at point P with respe…
Two bodies, a ring and a solid cylinder of same material are rolling down without slipping an inclined plane. The radii…
A huge circular arc of length 4 . 4   ly subtends an angle 4 s at the centre of the circle. How long it would take…
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