A cylindrical block of radius r and mass m is lying on the table and the pressure acting on the table is P. If its radius is doubled and mass is tripled, then the pressure acting on the table is :

A uniform rod of mass m and length l is lying on a smooth table. An impulse J acts on the rod momentarily as shown in figure at point R. Just after that:

A paticle of mass m is executing uniform circular motion on a path of radius r . If p is the magnitude of its linear momentum, then the radial force acting on the particle is

A uniform chain of mass m and length l overhangs a table with its two third part on the table. Fine the work to be done by a person to put the hanging part back on the table.

A uniform chain of length l and mass m overhangs a smooth table with its two third part lying on the table. Find the kinetic energy of the chain as it completely slips off the table.

A force of 40N acts on a body. If the units of mass and length are doubled and the unit of time is tripled, then the force in the new system becomes

If the pressure is doubled for a fixed mass of gas, its volume will become

A hemisphere of radius R and mass 4 m is free to slide with its base on a smooth horizontal table . A particle of mass m is placed on the top of the hemisphere . The angular velocity of the particle relative to centre of hemisphere at an angular displacement theta when velocity of hemisphere has become v is

In the question number 25, if the mass placed at vertex A is doubled, then the force acting on the mass 2m placed at the centroid O is

Three identical blocks each of mass M are along a frictionless table and a force F is acting as shown. Which of the following statements is false ?

A uniform chain of mass m and length l is lying on a horizontal table with one-third of its length hanging over the edge of the table. What is the speed of the chain, when it just loses contact with the table?