Have you ever gotten a ticket for speeding and yet you weren't speeding? "Honest Officer! I was only going 50mph just like the sign said!" "Sorry son, I got you at 63mph." You know you didn't speed, but how are you going to prove it? Given the conditioned that you have a sedan car, on a wet raining road, on a downhill curve radius of a third of a mile. You can argue to a judge that with the mass of the car and the curvature of the road could barely support 63mph. Now with the addition of the wetness of the road lowering the co-efficent of friction it would cause the car to slide off the road, so going 63mph is not plausible. You have just won your case. Whoa, a lot of scientifcal jargon here! If you take physics a step at a time it all becomes easy! Just like math, no one starts of at calculas. It must be taken a step at a time. Read on and you'll be ready the next time and officer claims you were speeding and you really weren't!
Biographies of the Fathers of Physics
Classical General Physics
Basic UnitsPhysics Humor!
Motion in One Dimension
Motion in Two Dimensions:Vectors, Trajectories
Work, Energy, Power
Conservation of Energy
Standing Waves, Sound