A Ball Is Dropped from a Window 140 Feet Above $\ge$

Multiple Choice

A ball is dropped from a window 140 feet above the ground.Assume that its acceleration is a(t) = -32 ft/sec² for t $\ge$ 0.Find the velocity of the ball as a function of time t.(All answers are in ft/sec.)

A) $-16 t^{2}+140$
B) $-32 t$
C) $-32+140$
D) $-16 t^{2}$