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ZX-9A8C3608D12026年3月国际B卷 · 第 17 题
2026年3月国际B卷 · 原库模块 1 · Q17 原库参考解析
A truck with a mass of 2,400 kilograms (kg) was first observed to travel 1,520 meters (m) in 60 seconds (s) at a constant speed. During a second observation an hour later, the same truck was observed to travel 1,170 m in 60 s at a constant speed in the same direction. What is the positive difference, in kg·m/s, between the truck's momentum during the first observation and the truck's momentum during the second observation?
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