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SUBJECT 4 · BAD WEATHER & ROADS

When a motor vehicle drives on a wet, slippery road, how does road adhesion change as speed increases?

A
It will increase rapidly.
B
It will increase gradually.
C
It will decrease rapidly.
✓
D
There is no change.
ANSWER · C
A slippery road surface is wet and easy to slip on, so adhesion between the vehicle and the ground decreases.
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