physics

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A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 15.0 m/s, and the man is initially 2.45 m above the level of the saddle.

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how long to fall 2.45 m

(1/2) 9.81 * t^2 = 2.45
t = .707 s

how far did the horse go?
15 * .707 = 10.6

Jump when the horse is 10.6 m away.

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