问题的翻译应该是飞镖最后离枪多远.
Since v0=196m/s
In the horizontal direction,the velocity should be:v0 cos15.
The time (T) that will takes the darts to fly is two times the time(t) we get from this equation:v0 sin15-gt=0
S=v0 cos15 x T
=196 cos15 x 2(196 sin15/9.8)
最后一步的数你可以自己用计算器算,cos15,sin15完全可以用计算器的.
如对于我的解答有问题,欢迎继续追问~
请点击“采纳为满意答案”,)