A ball falls on an inclined plane of inclination θ from a height h above the point of impact and makes a perfectly elastic Collision. Where will it hit the plane again?
Angle of inclination on the plane is Ө,
The body falls through the height h,
Acceleration due to gravity g = 10 m/s,
The striking velocity of the projectile with the inclined plane is
Now, the projectile makes an angle of
Velocity of projection will be,
Let AB=l,
So,
From equation of trajectory
So,
Thus, it will hit the plane again at 8h sin θ along the incline.