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OpenStudy (anonymous):
a grasshopper jumps off the ground with an initial vertical velocity of 4 feet per second. After how many seconds does he reach the ground? please use the vertical motion formula h=-16t^2+vt+s
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OpenStudy (anonymous):
someone help me on mine please
OpenStudy (cwrw238):
when he reaches ground h = 0 so 0 = -16t^2 + 4t + 0 t(16t - 4) = 0 t = 4/16 = 1/4 answer 1/4 second
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