先看下面一道题.题目小明同学做了如下的一个探究实验:找一段棉线,在棉线的一端拴上一个重物,然后,把它搭在一个水平放置的圆棍上,通过弹簧测力计来拉棉线的另一端,这时,要使重物不下落,用的力虽然比竖直向上 Let’s look at the following question. Title Xiaoming made an inquiry experiment as follows: Look for a cotton thread and put a heavy object on one end of the thread. Then, place it on a horizontally placed round stick and pass the spring dynamometer. To pull the other end of the thread, at this time, to make the weight not fall, the force is higher than vertical