A rocket is launched from atop a 101 – foot cliff with an initial velocity of 116 ft/s.
 a. Substitute the values into the vertical motion formula h(t) = −16t + vt + h . Let h(t) = 0
 b. Use the quadratic formula to find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second. 
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