Takeru Wrote:Composer of Requiems Wrote:Okay, explain the gyroscope and centrifugal force then.
Anyway, Magical Ape MS already exists.
OK! centrifugal force: lets say a driver of a car is on a curve that is in a rotating reference frame and he could invoke a centrifugal force, lets say he had a coffee cup on his dash and a carton of eggs on the seat beside him they both tend to slide sideways, to explain why the coffee cup and the carton of eggs slide sideways. The friction of the seat or dashboard may not be sufficient to accelerate these objects in the curved path.
A person in a hovering helicopter above the car could describe the movement of the cup and the egg carton as just going straight while the car travels in a curved path. It is similar to the "broken string" example.
The centrifugal force is a useful concept when the most convenient reference frame is one which is moving in a curved path, and therefore experiencing a centripetal acceleration. Since the car will be experiencing a centripetal acceleration v2/r, then an object of mass m on the seat will require a force mv2/r toward the center of the circle to stay at the same spot on the seat. From the reference frame of a person in the car, there seems to be an outward centrifugal force mv2/r acting to move the mass radially outward. In practical descriptive terms, you would say that your carton of eggs is more likely to slide outward if you have a higher speed around the curve (the velocity squared factor) and more likely to slide outward if you go around a sharper curve ( the inverse dependence upon r). XD
It doesn't really count as an explaination if you just copy and paste it from another website online. If you do, please at least do something about the superscript for the squares, it's painfully obvious otherwise.
Takeru Wrote:and a Gyroscope.... why explain it when I already explained how it works?
Nah. You're quoting a lot of terms left and right, but you arn't really saying much about how it works. It's like the difference between saying "It flies because of the Bernoulli effect" and "It can fly because the shape causes the air to be thinner on one side, and as a result, the net difference in pressure lifts it up"
What I'm trying to say here is that it's all very well to know "how" things work, but it's most important to have a physical feel for it.