It should help you understand Newton's 2nd Law a bit better than before. Sorry about the bad recording :p
Newton's 2nd is pretty much based on the equation F=ma and A=fm. Basically, F is equal to force, A to acceleration, and M is mass in case you didn't know.The bigger the mass, the bigger the force it needs in order to move. Bigger and heavier objects need more force whereas small and lighter objects do not necessarily need a big force to move~ just the right amount. Newton's laws can be directly applied to real life.