A particle projected from a poin A with velocityu sqrt(2) at an angle 45^(@) with horizontal. It strikes the plane BC at right angle Change is velocity is ..........

A particle projected from a poin A with velocityu sqrt(2) at an angle

1.	A particle projected from a poin A with velocityu sqrt(2) at an angle 45^(@) with horizontal. It strikes the plane BC at right angle Change is velocity is ..........
Answer» U `(SQRT(3)u)/(2)` `((sqrt(3)+1)u)/(2sqrt(3))` `((sqrt(3)+1)u)/(sqrt(3))` Answer :D