Two cars X and Y travelling in opposite directi... - WAEC Physics 2010 Question
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
A
200 kmh-1
B
100 kmh-1
C
40 kmh-1
D
20 kmh-1
correct option: a
R = 110 + 90 = 200
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