Problema Solution
If an object is thrown straight up from the top of a 240 foot tall building at 88 feet per second, the height of the object ater t seconds can be modeled by the equation h(t)= -16t^2+88+240. How long until the object hits the ground?
Answer provided by our tutors
h(t)= -16t2+88+240
At ground, the height =0.
So, 0 = -16t^2+88+240
=> -16t2 =-328
=> t2 = 20.5
t = 4.53