How do you get a swing started without a push?
Well you make yourself look like an idiot and start pushing your legs
back and forth like a maniac. Seriously. This perpendicular force, torque, to the swing that you are sitting on makes it move which makes you move since you are on it! The continuous pumping of your legs makes the motion continuous also and thus a happy swing =]
A push doesn't help you get started either, you have to be held up and let go which turns potential (PE=mgh) energy to kinetic (1/2mvsquared) =] and your pumping keeps it going! woooo...now get on a swing and have some PHysics PHun! =P
Thing to think about: is it possible to go completely around the set if the bars allowed you to? well according to the guy on the left it is cause he did it(on a different swing set). HOW is it physically possible?
No comments:
Post a Comment