A car of mass 1200kg is moving at 25m/s while a truck of mass 6000kg is moving at 5m/s in the same direction. Which option is true regarding their momentum and inertia?
a) The car has greater momentum and greater inertia than the truck
b) The car and the truck have equal momentum, but the truck has greater inertia
c) The truck has greater momentum and greater inertia than the car
d) The car and the truck have equal momentum and equal inertia