(2)Obvious Mistake!

"(2) Power doesn't directly determine a car's acceleration.
...
Or, m * V * A = P(t), where A is acceleration. Now you see it plainly: As the vehicle’s speed increases, the same amount of power generates less and less acceleration!"
You are definitely right, "the same amount of power generates less and less acceleration". That's why engine generates more power as RPM (or V) increases! According to your "no gear changing" model, and that's why an engine has peak power at lower rpm will quickly run out of breath while ones continuously increase power outpu up to a higher rpm accelarate better.

Do I need to say more?

所有跟帖: 

What mistake? -Bonbon330S- 给 Bonbon330S 发送悄悄话 (472 bytes) () 12/07/2005 postreply 14:30:09

Actually, A=P/V/m=Q*(K/Rw/m)=constant, -Bonbon330S- 给 Bonbon330S 发送悄悄话 (84 bytes) () 12/07/2005 postreply 14:34:47

回复:What mistake? -ifidonlike- 给 ifidonlike 发送悄悄话 (1479 bytes) () 12/07/2005 postreply 15:21:22

回复:回复:What mistake? -Bonbon330S- 给 Bonbon330S 发送悄悄话 (1383 bytes) () 12/07/2005 postreply 15:36:51

Maybe not so obvious to some -ifidonlike- 给 ifidonlike 发送悄悄话 (1610 bytes) () 12/07/2005 postreply 19:37:08

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