A Projectile Is Shot Upwards from the Surface of the Earth

Multiple Choice

A projectile is shot upwards from the surface of the earth with an initial velocity of 148 meters per second. The position function is .What is its velocity after 4 seconds?

A) The velocity after 4 seconds is 128.4 meters per second.
B) The velocity after 4 seconds is -167.6 meters per second.
C) The velocity after 4 seconds is -187.2 meters per second.
D) The velocity after 4 seconds is 108.8 meters per second.
E) The velocity after 4 seconds is 276.4 meters per second.