15 meters/second. The combined mass of the vehicle and the driver is 1.5 × 10³ kilograms. What is the amount of mechanical work done by the vehicle?
A) 7.5 x 10⁴ joules
B) 1.5 x 10⁵ joules
C) 3.0 x 10⁵ joules
D) 6.2 x 10⁵ joules