Question: Boy A throws a ball vertically up with a speed of 9 m / s from the top of a shed 2 . 5 m

Boy A throws a ball vertically up with a speed of 9m/s from the top of a shed 2.5 m high. Boy B on the ground throws a ball vertically up with a speed of 12 m/s. Determine the time at which the two balls will be at the same height above the ground. What is the height?

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