当一辆抛锚的汽车被另一辆汽车拉着行驶时,拉汽车的绳束总是很粗,据说是为了安全起见。其实汽车被拉着走时,绳子受到的力并不大。为什么要用粗绳来拉呢?让我们从实验中去寻求答案吧!一、实验用品木头一块,同样粗的细绳两根。二、实验方法1.把两根绳子方向相反地捆在木块的中部并用其中一根绳子把木块牢牢地吊起来,让另一根绳子垂在木块下面。 When a broken car was pulled by another car, pulling the car's rope is always thick, is said to be safe. In fact, when the car was pulled away, the rope suffered by the force is not large. Why use thick rope to pull it? Let us from the experiment to find the answer! First, the experimental piece of wood, the same thick rope two. Second, the experimental method 1. The opposite direction of the two ropes tied in the middle of the block and use one of the rope to lift the block firmly, let another rope hanging in the wood below.