SOLUTION: Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
A rocket is launched from atop a 76-foot cliff with an initial velocity of 135 ft/s
Question 1042056: Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
A rocket is launched from atop a 76-foot cliff with an initial velocity of 135 ft/s.
a. Substitute the values into the vertical motion formula h=-16t2+vt+c Let h = 0.
b. Use the quadratic formula find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second. Answer by ikleyn(52778) (Show Source):
You can put this solution on YOUR website! .
Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
A rocket is launched from atop a 76-foot cliff with an initial velocity of 135 ft/s.
a. Substitute the values into the vertical motion formula h=-16t2+vt+c Let h = 0.
b. Use the quadratic formula 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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The equation after substitution is
=
( 135 goes as "v", 76 goes as "c" ). It is your answer to question a).
To answer question b), solve this quadratic equation
=
and take the positive root.
