System of Parti...

An object will not undergo rotational motion when:

What is the momentum of a $$6.0 kg$$ bowling ball with a velocity of $$2.2 {m}/{s}$$?

 Two masses of 1 gm and 4 gm are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is:

If v, P and E denote the velocity, momentum and kinetic energy of the particle, then:

A man inside a freely falling box throws a heavy ball towards a side wall. The ball keeps on bouncing between the opposite walls of the box. We neglect air resistance and friction. Which of the following figures depicts the motion of the centre of mass of the entire system (man, the ball and the box) ?

Two bodies, $$A$$ and $$B$$ initially, at rest, move towards each other under mutual force of attraction. At the instant when the speed of $$A$$ is $$v$$ and that of $$B$$ is $$2v$$, the speed of the center of mass of the bodies is

The radius of gyration of a disc of mass $$100 g$$ and radius $$5 cm$$ about an axis passing through its centre of gravity and perpendicular to the plane is (in cm)

Let 'M' be the mass and 'L' be the length of a thin uniform rod. In first case, axis of rotation is passing through centre and perpendicular to the length of the rod. In second case axis of rotation is passing through one end and perpendicular to the length of the rod. The ratio of radius of gyration in first case to second case is

 A force-time graph for the motion of a body is shown in figure.
Change in linear momentum between 0 and 8 s is:

$$ML^2T^{-2}$$ is the dimensional formula for