In: Physics
A small metal ball with a mass of m = 97.6 g is attached to a string of length l = 1.43 m. It is held at an angle of θ = 42.1° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides head-on and perfectly elastically with an identical ball originally at rest. This second ball flies off with a horizontal initial velocity from a height of h = 3.26 m, and then later it hits the ground.
At what distance x will the ball land?