Physics > 2000 > 8
WASSCE
The driver of a car moving with a uniform speed of 40ms-1 observes a truck approaching in the opposite direction with a speed of 20ms-1. calculate the speed of the car relative to that of the truck.
A.
0.5ms-1
B.
2.0ms-1
C.
20.0ms-1
D.
60.0ms-1
Answer: D
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