Asked by chrop

an object is thrown upwards and its height h(t) in meters after t seconds is given by the equation h(t)=1+4t-5t^2
.when the object hit the ground.

Answers

Answered by Steve
its height is zero when it hits the ground, right? So, just solve

1+4t-5t^2 = 0
Answered by Victor James
0.4sec
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