题目
题目

SPHY001 Practice Quiz - Unit 08 | LA048

单项选择题

A 75-g ball strikes a wall horizontally at 12 m/s and rebounds in the opposite direction at 10 m/s. The ball’s change of momentum has magnitude  

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思路分析
The problem gives a 75-g ball (mass m = 0.075 kg) traveling horizontally toward a wall at 12 m/s and rebounding in the opposite direction at 10 m/s. To find the change in momentum, use Δp = p_fi......Login to view full explanation

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