a scientist dropped an object from a height of 320 feet. the height of the object is modeled by the equation h=320-16t^2. after how much time will the object hit the ground?

Answer 1

The equation h = 320 - 16t² clearly shows that at time (t) = 0, then height h = 320

When the object hits the ground, h = 0.

Setting h = 0, we find that 320 = 16t²

Solving for t we find that time = 4.472 seconds