Physics > 2010 > 7
WASSCE
Two cars X and Y travelling in opposite directions along the same highway at uniform velocities 110kmh-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.
200kmh-1
B.
100kmh-1
C.
40kmh-1
D.
20kmh-1
Answer: A
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