The velocity v(t) of a ball thrown upward satisfies the equation v(t) = vo + at, where vo is the initial velocity of the ball in ft/s and a is the acceleration in ft/s2

Given the data find the equation of the line representing the velocity v(t) of the ball, and determine both the initial velocity vo and the acceleration a. Sketch the graph of the line v(t), and clearly indicate both the initial velocity and the acceleration on your graph. Also determine the time at which the velocity is zero.

V(t) (ft/s)	t(s)
67.8	1.0
3.4	3.0