A paperweight is thrown straight up with an initial upward velocity of 60 meters per second and an initial height of 6 meters. The acceleration (due to gravity) of the object is given by a(t) = -9.8 meters per second per second, where t is in seconds. The equation that describes the paperweight's velocity as a function of time tis: A. v(t) = -4.9t - 60 == B. v(t) = 9.8t+C c. v(t) = -4.9t + 60 D. v(t) = 9.8t+60 E. (t) = 9.8t-60