If the function that describes the height of a ball thrown is h(t) = -16t^2 + 64t + 20. What is the initial velocity of the ball?

Answer 1

64 feet per second

the coefficient of the linear term, the t term, is the initial velocity

general equation for the parabolic height is

h(t) = (a/2)t^2 + (vo)t + ho where vo= initial velocity, ho= initial height and a= deceleration due to gravity = 32 feet per second per second

in the given formula with the linear term +64t, 64 = vo = initial velocity