Physics for Dummies

by **Caesar** » Oct 10, 2003 @ 10:00pm

I just noticed that. Jadam why does your APPhysics book have imperial units in it as opposed to the standard metric ones? In my physics class we always use metric(as does every scientist....)

by **glenthemole** » Oct 10, 2003 @ 10:12pm

by **James S** » Oct 10, 2003 @ 10:40pm

yeah, what themole said. It will slowly accelerate towards the front of the train because the air is standing still inside the train. That's like if you throw a baseball from a moving vehicle or such.

by **Jadam** » Oct 10, 2003 @ 10:40pm

by **Caesar** » Oct 10, 2003 @ 11:27pm

I agree with moose, the rocket should accelerate towrds the front of the train becuase the air inside the train isn't moving. Its time slike this that you gotta remember that speed and acceleration are relative.

by **Maf54** » Oct 10, 2003 @ 11:39pm

But air is gases, right? And you can push air like when you flap a peice of paper or turn a propeller. Well therefor shouldn't the air in the train already by moving at the right speed, because it is being pushed by the backwall of the train?

by **James S** » Oct 10, 2003 @ 11:41pm

No, that's relativity. When you're in an airplane does your hair blow wildly? When you're in a car if you drop something does it fly to the rear of the vehicle?

Physics for Dummies

Physics for Dummies

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