MEDAL!!!

A rocket is launched from atop 101 - foot cliff with an initial velocity of 116ft/s.
a. Substitute the values into the vertical motion formula h(t) = -16t^2 + vt + $h_0$. 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.

Question

MEDAL!!!

A rocket is launched from atop 101 - foot cliff with an initial velocity of 116ft/s. 
a. Substitute the values into the vertical motion formula h(t) = -16t^2 + vt + $h_0$. 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.

calculusxy · Answer

@phi @robtobey

astrophysics · Answer

So what's the problem

astrophysics · Answer

Plug in the values in the equation you're given and then use quadratic formula to find the time t.

calculusxy · Answer

a. -16t^2 + 116t + 101 = 0 

Is that correct?

astrophysics · Answer

Yes

calculusxy · Answer

OK. i just wanted to make sure that. Thanks :)