Rebounded Tennis
A tennis ball is dropped from a height of 2.0m above floor level difficult and it bounces to a height of 1.5m.?
What is the total?? What is the speed just after impact??
consider the first case in which the ball falls, u = 0, s = 2, g = 9.81 t =??? s = ut + 0.5gt use to find ^ 2 t, where t = 0.639 second case considered, where the ball bounced g = -9.81, v = 0 u = unknown, knowing u + V = at, substitute all we obtain a value U = 9.81t form s = ut + ^ 0.5gt 2, we convert it to 1.5 = [9.81tt] + 0.5 [-9.81] t ^ 2 t know, we 0.553 + 0.553 was obtained by adding 0.639 = 1192
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