Reply to Views:www3.tvboxnow.com0 F5 L x' M& z; z- v/ M
Yes this is simple calculation, but you have made the first step only. You may get only half point while the question is asking about the distance, which you have simplified your first step t2 - t1 = d/v2 - d/v1 into d=???.作者: lalalaudh 時間: 2010-3-9 12:35 PM
t = t2 - t1 = d/v2 - d/v1 7 G$ b$ e: H- Kwww3.tvboxnow.comwww3.tvboxnow.com0 O7 d: R9 P: \# A! {
so answer is : & ^# J, e, Z+ N, o9 ~7 N5 Wwww3.tvboxnow.com. v, l; L& y3 ]; u+ Y, D
d = t * v1 * v2 / (v1-v2)作者: views 時間: 2010-3-9 01:04 PM
