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题:如图所示,传送带AB段是水平的,长20m,传送带上各点对地速度大小u=4m/s.已知物体与传送带间的动摩擦因素为0.1,求将物体轻放到传送带的A端后,经多长时间该物体可以到达B端(g取10m/s~2).
As shown in the figure, the AB segment of the conveyor belt is horizontal and 20m long, and the speed of each point on the conveyor belt is 4m / s. The known dynamic friction factor between the object and the conveyor belt is 0.1, Of the A terminal, after how long the object can reach the B terminal (g take 10m / s ~ 2).