[題目] 功與能
[題目] o
A 4.0kg bundle starts up a 30 incline with 128J of kinetic energy.
How far will it slide up the incline if the coefficient of kinetic friction
between the bundle and the incline is 0.3?
[瓶頸]
想說從一開始物體的動能128J轉換成位能,但是期間有動摩擦力的作用,
不知道要如何處理?
謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 118.232.20.199
→
07/03 23:43, , 1F
07/03 23:43, 1F
討論串 (同標題文章)