本题目来源于试卷: gc physics textbook chapter 4 problems，类别为 通用国际物理
[问答题]
Why might your foot hurt if you kick a heavy2m3c t:xx*1uyc7nz4fa d 8vhi desk or a /m dt6 o85ahxyug 21wewall?
参考答案:
By Newton’s 3rd law, the desk or wall exerts a force on your foot equal in magnitude to the force with which you hit the desk or wall. If you hit the desk or wall with a large force, then there will be a large force on your foot, causing pain. Only a force on your foot causes pain.
本题详细解析:
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