2/15 A ball is thrown vertically upward with an initial speed of 25 m/s from the base A of a 15-m cliff. De- termine the distance h by which the ball clears the top of the cliff and the time t after release for the ball to land at B. Also, calculate the impact velocity UB- Neglect air resistance and the small horizontal mo- tion of the ball. Ans. h = 16.86 m, t 4.40 s UB = 18.19 m/s downward %3D %3D %3D

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