Posted by **Luis** on Saturday, June 7, 2014 at 10:34pm.

June stands on the roof of the house which is 22.8 m high and she throws the ball at an initial speed of 4.90 m/s downward at Ben who is 1.80m tall. a) With what speed does she hit her target's head and b) how much time was it in the air? Displacement= 21 m.

-Place coordinates on roof

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