A baseball is thrown into their air. The height, h, in meters, as a function of time, t, in seconds after the baseball is thrown is given by f(t) = -4.9t2 + 25t + 7. a. What is the baseball's velocity at t = 2? Velocity is the rate of change of distance with time. b. What is the baseball's acceleration at t = 2? Acceleration is the rate of change of velocity with time.