一、对原题的分析与解答原题一长木板在水平地面上运动,在t=0时刻将一相对于地面静止的物块轻放在木板上以后,木板运动的速度一时问图象如图1所示。已知物块与木板质量相等,物块与木板间及木板与地面间均有摩擦,物块与木板间的最大静摩擦力等于滑动摩擦力,且物块始终在木板上。取重力加速度的大 First, the original title of the analysis and answer The original title of a long wooden board in the level of ground movement, at t = 0 moment relative to the ground stationary pieces of light on the board later, the speed of the wood board asked a moment like Figure 1 shows. Known pieces of wood and the quality of the same, between the block and the wood and between the board and the ground friction between the block and the maximum static friction between the board equal to the sliding friction, and the pieces are always on the board. Take the acceleration of gravity