A particle of mass is projected from the ground with an initial speed at an angle…
PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
A particle of mass m is projected from the ground with an initial speed u0 at an angle α with the horizontal. At the highest point of its trajectory, it makes a completely inelastic collision with another identical particle, which was thrown vertically upward from the ground with the same initial speed u0 . The angle that the composite system makes with the horizontal immediately after the collision is
(1) 4π
(2) 4π+α
(3) 2π−α
(4) 2π