After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by the equation h=-16t^2+70t+4. Determine how long it will take for the ball to hit the ground. Round your answer to two decimal places.

Answer 1

When it hits the ground, h=0
solve for that time. It is a quadratic, use the quadratic equation.

Answer 2

a baseball is hit into the air and its height h in feet after t seconds is given by h(t) = -16t62 + 64t +2

A. What is the height of the baseball when it is hit?

B. After, how many seconds does the baseball reach it's maximum height?

C. Determine the maximum height of the baseball.

Answer 3

h=16t^2+100t+40