论文部分内容阅读
先看两道题:题1将一质量为m的物体以初速v0。竖直向上抛出,已知物体在运动过程中所受空气阻力的大小与其运动速度成正比,比例系数为k.若物体能够上升的最大高度为H,则其上升过程所用的时间应为()
Let’s look at two questions first: Question 1 Take an object of mass m at the initial velocity v0. Throw up vertically. The air resistance of a known object during the movement is proportional to the speed of its movement. The proportional coefficient is k. If the maximum height that the object can rise is H, the time it takes for the ascending process should be ( )