Laws of Motion
What’s that saying about how objects in motion want to remain in motion? Ok, couldn’t remember so I googled it, so as to get my facts straight. Winkipedia tells me that…
– An object that is at rest will stay at rest unless an unbalanced force acts upon it.
– An object that is in motion will not change its velocity unless an unbalanced force acts upon it.
Let’s really break this down for a minute. Let’s hypothetically say that if I were standing at the top of my tall, slick hardwood stairs, I would remain there until I made the choice to descend. That would be point #1. Then as I made the choice to descend, calling upon all of the unbalanced forces within me, I instead begin to slide quite ungracefully, quite clunkily, down said stairs, it follows that I will not stop until I am finally able to wildly grab hold of the handrail which in now about two feet above me. That would be point #2.
So (hypothetically still, of course), I’ve just proven that Newton was a genius and that I am a klutz.
I think Newton also said something about how hard it is to get an object at rest to be in motion…I think he’s right on this account as well. I would imagine that if this story were true :), it would have been quite impossible to pull my sore, aching body out of bed this morning.
And that, class, is your science lesson for the day.