Anonymous

s = 67.8 m. t = 3.72 s. g = 9.8 m/s^2. u = 0. Given s = ut + 1/2 at^2 please find t.

Anonymous

2h = g*t^2 t = √2h/g = √135.6/9.806 = 3.719 sec (rounded up to 3.72 sec)

Anonymous

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Anonymous

t = √(2h/g) = √(135.6/9.81) = √13.82 = 3.72 sec