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题目:如图斜面ABC,斜面长AB=10米,斜面高AC=h=5米,把重G=500牛顿的物体从斜面的底端B匀速拉到顶端A,且沿斜面的
Topic: As shown in Figure Slope ABC, slope length AB = 10 meters, slope height AC = h = 5 meters, the weight of G = 500 Newton objects from the bottom B of the ramp to the top A uniform, and along the slope of