Physics

A rescue team has to use a specially designed sling-shot to supply emergency medicine to a stranded hiker. The hiker's altitude above the ground is 320m and his horizontal distance from the launch site is 410m. The launching angle of the initial velocity is 68 degrees from the horizontal.
a.) what is the speed of the launch angle of 68 degrees?
b.)what should be the launch speed at the same launch angle of 68 degrees, if the person was on a small island, instead at the same level as the rescue team at the distance of 410m?

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asked by Becky

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