A particle is projected from the mid-point of the line joining two fixed particles each of mass `m`. If the separation between the fixed particles is `l`, the minimum velocity of projection of the particle so as to escape is equal to

The escape velocity of a particle of mass m varies as

A particle of mass 1 kg and charge 1//3 mu C is projected toward a nonconducing fixed spherical shell of radius r = 1 mm having the same charge uniformly distributed on its surface. Find th minimum initial velocity of projection requires if the particle just grazes the shell. .

A particle is projected from the ground with an initial speed of v at an angle theta with horizontal. The average velocity of the particle between its point of projection and highest point of trajectroy is :

Does centre of mass of a system of two particles lie on the line joining the particles ?

A particle is projected from the ground with an initial speed v at an angle theta with horizontal. The average velocity of the particle between its point of projection and highest point of trajectory is [EAM 2013]

A particle is projected from a point on the level ground and its height is h when at horizontal distances a and 2 a from its point of projection. Find the velocity of projection.

A particle is projected from the ground with an initial speed of 5 m s^(-1) at an angle of projection 60° with horizontal. The average velocity of the particle between its time of projection and the time it reaches highest point of trajectory