The driver of a truck travelling at 50.5 km/h presses on the gas pedal and causes an acceleration of 2.25 m/s². If the time to accelerate is 4.20 s, what is the final velocity of the truck?
A) 84.5 km/h
B) 55.3 km/h
C) 63.7 km/h
D) 52.8 km/h