问题描述:
求助:一道英文物理题!
N identical balls lie equally spaced in a semicircle on a frictionless horizontal table, as shown. The total mass of these balls is M. Another ball of mass m approaches the semicircle from the left, with the proper initial conditions so that it bounces
(elastically) off all N balls and finally leaves the semicircle,
heading directly to the left.
在http://www.physics.harvard.edu/academics/undergrad/probweek/prob29.pdf有图 ,有答案,但是本人学识不够,看不懂啊
N identical balls lie equally spaced in a semicircle on a frictionless horizontal table, as shown. The total mass of these balls is M. Another ball of mass m approaches the semicircle from the left, with the proper initial conditions so that it bounces
(elastically) off all N balls and finally leaves the semicircle,
heading directly to the left.
在http://www.physics.harvard.edu/academics/undergrad/probweek/prob29.pdf有图 ,有答案,但是本人学识不够,看不懂啊
问题解答:
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