A ball is thrown onto a smooth floor with speed `u` at angle `theta = 45^(@)`. If it rebounds with a speed `v` at the same angle `phi = 45^(@)`. Then the coefficient of restitution is

A particle strikes a horizontal frictionless floor with a speed u, at an angle theta to the vertical, and rebounds with a speed v , at an angle phi to the vertical. The coefficient of restitution between the particle and the floor is e. The magnitude of v is

A particle strikes a horizontal frictionless floor with a speed u, at an angle theta with the vertical, and rebounds with a speed upsilon , at an angle phi with the vertical. The coefficient of restitution between the particle and the floor is e. The angle phi is equal to :

A particle strikes a horizontal smooth floor with a velocity a making an angle theta with the floor and rebounds with velocity v making an angle phi with the floor. If the coefficient of restitution between the particle and the floor is e , then

A particle of mass m strikes a horizontal smooth floor with velocity u making an angle theta with the floor and rebound with velocity v making an angle theta with the floor. The coefficient of restitution between the particle and the floor is e . Then

A particle of mass m strikes a horizontal smooth floor with velocity u making an angle theta with the floor and rebound with velocity v making an angle theta with the floor. The coefficient of restitution between the particle and the floor is e . Then