A concave mirror has a focal length f = 200 [cm]. The mirror is lying flat on the floor. You take a ball and align it with the center (vertex point) of the mirror. Then at time (t=0) you release the ball from a height h = 5 [m].
(a) The ball falls and hits the center of the mirror. Describe the height of the image di = zi as a function of time from the time it is released until it hits the mirror. In other word find how the height of the image changes as function of time. (b) At what time the ball goes through the focal point of the mirror
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