物理的几个英文定律和题目 求翻译定律1.the direction of velocity in curvilinear motion is changing with time and the direction of the velocity of a particle at a certain point(or instsnt)is in the tangent direction of the curve at that
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物理的几个英文定律和题目 求翻译定律1.the direction of velocity in curvilinear motion is changing with time and the direction of the velocity of a particle at a certain point(or instsnt)is in the tangent direction of the curve at that
物理的几个英文定律和题目 求翻译
定律1.the direction of velocity in curvilinear motion is changing with time and the direction of the velocity of a particle at a certain point(or instsnt)is in the tangent direction of the curve at that point.
2. when the direction of the net force a body experiences and the direction of the velocity of the body do not fall in the same straight line, the body is in curvilinear motion.
题目1. if a boat's speed in the still water is 5m/s, and the speed of the water in a river is 3m/s. how can we cross the river in the shortest time? and how about the shortest distance?
物理的几个英文定律和题目 求翻译定律1.the direction of velocity in curvilinear motion is changing with time and the direction of the velocity of a particle at a certain point(or instsnt)is in the tangent direction of the curve at that
1.曲线运动中速度的方向是随时间变化的方向和速度的粒子在某个点（或instsnt）在切线方向的曲线在
这一点上.
2.当方向的净力的身体经验的方向和速度的身体不在同一直线上,身体曲线运动.
题目：1.如果船的速度在水仍然是5米/秒,速度和江河中的水是3米/秒我们如何过河,在最短的时间?多少的路程最短?
希望对你有所帮助.
1.在某一个点（或instsnt）粒子的速度和方向的变化曲线运动的速度方向是曲线在该点的切线方向。
2.如果船在静水中的速度是5米/秒，有一条河流的水的速度是3米/秒。我们如何能在最短的时间内以最近的距离穿越河流？