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WAEC Physics 2019 Paper

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Question : 23

Total: 49

An 800 kg car moving at 80 km hr‌−1 collides with a 1200 kg car moving at 40 km hr‌−1 in the same direction. If the cars stick together, calculate their common velocity.

60 km hr‌−1
8 km hr‌−1
40 km hr‌−1
56 km hr‌−1

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