It is possible to shoot an arrow at a speed as high as 100 m/s. (a) If friction can be ignored, how high would an arrow launched at this speed rise if shot straight up? (b) How long would the arrow be in the air?

Question

Grease

15 October, 17:03

+5

Answers (1)

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Foxy · Answer 1

A) 0 = 100m/s + 2 (-9.8) (x_f-0)

x_f = 510

b) 0 = 0 + 100m/s (t) + (1/2) (-9.8) t^ (2)

Use the quadratic formula

-200/-9.8 = 20 seconds