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. Grimm RJ3. A classroom demonstration of automobile stopping distances. The Physics Teacher, N.Y., 1998 No. 11, . (.). . , , , : 700 1200 . , ?.
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Grimm R.D. A classroom demonstration of automobile stopping distances. The Physics Teacher", N.Y., 1998, No. 11. Recognizing that physics course material is often irrelevant, it is necessary to identify physical concepts with things that are important to students. An example of the stopping distances of two cars with different masses can teach some physics. It is shown that if the efficient of friction is the same for the two cars on the same surface, then the friction force is Mmg and the deceleration is Mg, independent of mass. Thus the two cars will stop at the same distance. A simple demonstration of this concept is set up with two ramps with the same angles of inclination and a cart with one and then two bath-
room tiles (see Fig. 1). It will be seen that the two tiles will skid to a stop in the same distance. The same will be true for the imitated cars.
. Grimm R.D. A classroom demonstration of automobile stopping distances. "The Physics Teacher", N.Y., 1998, No. 11, . (.). , . , .
Grimm R.D. A classroom demonstration of automobile stopping distances. "The Physics Teacher", N.Y., 1998, No. 11. The choice of facts that can teach some physics and are at the same time important to high school students is discussed. A simple classroom demonstration showing the lack of dependence of stopping distances on mass.
