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WAEC Physics 2010 Paper

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Question : 7

Total: 50

Two cars X and Y travelling in opposite directions along the same high way at uniform velocities 110 kmh^-1 and 90kmh^-1 respectively pass each other at a certain point. The velocity of X relative to Y at the time they pass each other is

200 kmh^-1
100 kmh^-1
40 kmh^-1
20 kmh^-1

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