已獲得補償摩擦軌道
係點解架???
2007-03-03 14:37:33 · 2 個解答 · 發問者 Anonymous in 科學 ➔ 其他：科學
應該會保持靜止或以勻速直線運動.
(根據牛頓運動第一定律)
2007-03-03 16:22:03 · answer #1 · answered by RIN 2 · 0⤊ 0⤋
The inclination of the track provides a wieght compoent that just balances the friction of the track. Thus a trolley that run on it would behave as if it is run on a smooth (i.e. frictionless) track.
2007-03-03 14:47:56 · answer #2 · answered by 天同 7 · 0⤊ 0⤋