Accelerating Frame and Non-Accelerating Frame (fragmentary)
◎ An observer in a passenger car in a uniformly accelerating linear motion will see everything in the car as at rest ? What if g is large ?
◎ A website says that equiliblium of forces are only for frames that are at rest or in uniform linear motion.
◎ The difference between accelerating frame and non-accelerating frame is crucial. But we continue to turn away from to it. This is physics ?
◎ A string stretches horizontally inside the cabin of a spaceship moving to the right with a uniform acceleration. The right end of the string is fixed to the right inner wall of the cabin, and the left end is fixed to body m, which is floating inside the cabin. The string has a tension ma (ignore the mass of string). Both m and a are specific values.
m and a will be the same for one inside and outside the ship.
