JEE MainPhysicsRotational MotionNumerical+4 / −1
A metre scale is balanced on a knife edge at its centre. When two coins, each of mass 10 g are put one on the top of the other at the 10.0 cm mark the scale is found to be balanced at 40.0 cm mark. The mass of the metre scale is found to be x 10 2 kg. The value of x is .
Numerical answer
More from Rotational Motion
- A solid cylinder and a solid sphere, having same mass and radius , roll down the same inclined plane from top without slipping. They start from rest. The ratio of velocity of the solid cylinder to that of the solid sphere, with…2022 · MCQ
- If force acts on a particle position vector then, the torque about the origin will be :2022 · MCQ
- Moment of Inertia (M.I.) of four bodies having same mass 'M' and radius '2R' are as follows: I1 = M.I. of solid sphere about its diameter I2 = M.I. of solid cylinder about its axis I3 = M.I. of solid circular disc about its diameter I4 =…2022 · Numerical
- A disc of mass and radius is free to rotate about a horizontal axis passing through its centre and perpendicular to the plane of disc. A body of same mass as that of disc is fixed at the highest point of the…2022 · Numerical
- The radius of gyration of a cylindrical rod about an axis of rotation perpendicular to its length and passing through the center will be . Given, the length of the rod is .2022 · Numerical
- A thin circular ring of mass M and radius R is rotating with a constant angular velocity 2 rads 1 in a horizontal plane about an axis vertical to its plane and passing through the center of the ring. If two objects each of mass m be…2022 · MCQ
- A solid spherical ball is rolling on a frictionless horizontal plane surface about its axis of symmetry. The ratio of rotational kinetic energy of the ball to its total kinetic energy is2022 · MCQ
- A pulley of radius is rotated about its axis by a force applied tangentially (while t is measured in seconds). If moment of inertia of the pulley about its axis of…2022 · Numerical