quote:
Originally posted by Madman
The fly is stoped, in relativity to the car.
not in relativity, it is stopped period. Time is a factor in motion, it can't be excluded. At one point in time the fly will have no motion at all.
1) car and fly approaches each other:
car has forward motion
fly has forward motion
2) collission occurs:
car has still forward motion (but a little bit less, but not 0)
fly has been
stopped, relativly to everything!
3) right after collission
car has still the same reduced forward motion
fly bounces back => reversed motion
quote:
Originally posted by Madman
Anyway, think of a graph showing the flys speed to go from a certain speed in one direction, to a splating and going the same way as a car, it has to deaccelarate then accelerate in the other dirrection.
Absolutely correct