an object is dropped from 31 feet below the tip of the pinnacle atop a 931 ft tall building. the height of the object is given by the equation h=-16t^2+900. how many seconds pass before the object hits the ground

Question

asnaseer · Answer

h represents the height of the object above the ground.

so, when it hits the ground, what will h equal?

anonymous · Answer

so am i multiplying? like 31(-16t^2+900)?

asnaseer · Answer

what will h equal when the object hits the ground?

asnaseer · Answer

you are going about this the wrong way.

@willb6 - once again, what will h equal when the object hits the ground?

anonymous · Answer

@sue no i don't, its just asking me to enter the answer (     ) seconds pass before the object reaches the ground..

@asnaseer h= -16t^2+900

asnaseer · Answer

@willb6 - think about this a little. what will be the /value/ of h when the object hits the ground. remember that h represents the distance that the object is above the ground.