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OpenStudy (anonymous):
A rocket is launched from ground level with an initial vertical velocity (v0) of 176 ft/s. After how many seconds will the rocket hit the ground? (Hint: h(t) = -16t2 + v0t + h0). __________ s. Enter a number only.
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sam (.sam.):
v=u+at v=0 at max height, 0=174+(-9.81)t t=17.7s Return trip= 17.7 x 2=35.4sec
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