Question

define Linear Momentum and explain the does a bus run forward than a car while both are moving with same velocity​

Answer 1

linear momentum is product of mass and velocity

Answer 2

Linear momentum is mass*velocity. If both are moving with same velocity bus has a greater momentum as it is heavier than car. No, the bus won't move forward than car as velocity does not depend on individual weights , if it same for 2 bodies having difference in masses they both move together.