Question Answers

Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 10 - COM, Momentum and Collision > A particle of mass m moving eastward with a speed v collides with another particle of the same mass moving northward with the same speed v. The two particles coalesce on collision. The new particle of mass 2 m will move in the north – easterly direction with a velocity

A particle of mass m moving eastward with a speed v collides with another particle of the same mass moving northward with the same speed v. The two particles coalesce on collision. The new particle of mass 2 m will move in the north – easterly direction with a velocity

A neutron collides head-on and elasticity with an atom of mass number A which is initially at rest. The fraction of kinetic energy retained by neutron is