Give the defination of collision frequency.

Define Collision frequency?

State Newton's second law of motion. Give and state defination of the SI unit of force.

Show that in two demensional elastic I collision between two bodies of equal mass and one body initialy at rest, they move at an angle of frac(pi)(2) after collision.

Show that in one dimensional elastic collision of two particales of equal mass,the partical exchange velocities after collisions.

A molecule in a gas container hits a horizontal wall with speed 200 m s-^1 and angle 30^@ with the normal, and rebounds with the same speed. Is momentum conserved in the collision? Is the collision elastic or inelastic?

Define the co-efficient of restitution. A particle of a mass m moving with a velocity u struck head-on against another particle of mass Km at rest.After collision the particles move with velocities V1 and V2 respectively.If the collision is prefectly elastic.Prove that the loss of kinetic energyof the particle with mass m is maximum when k=1.