gc textbook chapter 7 Linear Momentum (id: 1ae9a2e70)

本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 IB物理学

[问答题]
A squash ball hits a wall at7wu+k-v 4.atams nkh+bs);gb e4a8f 4f0kscz a 45 $^{\circ} $ angle as shown in Fig. below. What is the direction (a) of the change in momentum of the ball, (b) of the force on the wall?

参考答案:

(a) The downward component of the momentum is unchanged.  The horizontal component of 

momentum changes from rightward to leftward.  Thus the change in momentum is to the left in the picture.

(b) Since the force on the wall is opposite that on the ball, the force on the wall is to the right.

本题详细解析: 暂无

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