soccer examples for Newton's Second Law?

There are various ways of thinking about Newton's Laws. One way is to think of the Second Law as just defining the concept of force. The power of the theory would then be in the superposition principle: that separate effects just "add."

In this interpretation, there's not really anything you can say in terms of examples, except just conclude "in this case (where I measure the acceleration to be such-and-such), the force was mass times such-and-such."

I suppose you could kick a ball and figure out what the impulse is, and then pretend the force was constant over a given period of time and solve for the average force. But such an exercise wouldn't really have any physical content.

hmmm. You drop a ball of a building, the Force of gravity accelerates the ball to earth.