A lighter car and a heavier van, each initially at rest, are pushed with the same constant force F. After both vehicles travel a distance d, which of the following statements is true? (Ignore friction)  A) The kinetic energy of the van will be greater B) The kinetic energy of the car will be greater C) They will have the same kinetic energy D) They will have the same velocity E) Too easy? What is the ratio of vvan to vcar

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.