JEE MainPhysicsRotational MotionNumerical+4 / −1
One end of a straight uniform 1m long bar is pivoted on horizontal table. It is released from rest when it makes an angle 30º from the horizontal (see figure). Its angular speed when it hits the table is given as s-1, where n is an integer. The value of n is . 
Numerical answer
More from Rotational Motion
- Three solid spheres each of mass m and diameter d are stuck together such that the lines connecting the centres form an equilateral triangle of side of length d. The ratio I0/IA of moment of inertia I0 of the system about an axis passing… Includes diagram2020 · MCQ
- A uniformly thick wheel with moment of inertia I and radius R is free to rotate about its centre of mass (see fig). A massless string is wrapped over its rim and two blocks of masses m1 and m2 (m1 m2) are attached to the ends of the… Includes diagram2020 · MCQ
- A thin circular plate of mass M and radius R has its density varying as (r) = 0r with 0 as constant and r is the distance from its centre. The moment of Inertia of the circular plate about an axis perpendicular to the…2019 · MCQ
- An electric dipole is formed by two equal and opposite charges q with separation d. The charges have same mass m. It is kept in a uniform electric field E. If it is slightly rotated from its equilibrium orientation, then its angular…2019 · MCQ
- A rectangular solid box of length 0.3 m is held horizontally, with one of its sides on the edge of a platform of height 5m. When released, it slips off the table in a very short time t = 0.01s, remaining essentially horizontal. The angle… Includes diagram2019 · MCQ
- A solid sphere and solid cylinder of identical radii approach an incline with the same linear velocity (see figure). Both roll without slipping all throughout. The two climb maximum heights hsph and hcyl on the incline. The ratio hsph/hcyl… Includes diagram2019 · MCQ
- A stationary horizontal disc is free to rotate about its axis. When a torque is applied on it, its kinetic energy as a function of , where is the angle by which it has rotated, is given as k 2. If its moment of…2019 · MCQ
- The following bodies are made to roll up (without slipping) the same inclined plane from a horizontal plane. : (i) a ring of radius R, (ii) a solid cylinder of radius R/2 and (iii) a solid sphere of radius R/4 . If in each case, the speed…2019 · MCQ