# science

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If a projectile is fired straight up at a speed of 13m/s. How long does it take to reach the top of its motion? If the acceleration due to gravity is 9.8m/ s motion (squared) answer in units of s

• science -

V = Vo + gt.
t = (V-Vo)/g = (0-13)/-9.8 = 1.33 s.

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