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Problem 1. A tennis ball is dropped from the top of a two storey building, 20 m high. Calculate the following. a. The time it takes for it to reach the ground. b. The velocity at which it strikes the ground. (a.) y= 12 gtz (b.) Vty = Viy - gt Show your solution of the next space provided: Given: Solution: Answer. For 5 points answer the following question if it is TRUE or FALSE. 1. An object in an uniform motion has zero acceleration. 2. An object moving with a constant acceleration travels equal distances in equal time intervals. 0