the function h(t)+ -16t^2+8 gives the height in feet of a ball dropped from a height of h0 after t seconds. a ball is dropped from 8 feet. after how many seconds did the ball hit the floor

Answer 1

Set h(t) equal to zero and solve for t.

-16t² + 8 = 0

t² = 0.5

Finish from here.