A) Cover it with small pebbles
B) Cover it with sand
C) Spread grit on it
D) Pour oil on it
Correct Answer: D
Solution :
In order to reduce the friction on the surface of his driveway, Ted should make its surface very smooth. He should do so because frictional forces become very weak on smooth surfaces. Hence, in order to reduce the friction on the surface of his driveway, Ted should pour oil it. The correct answer is D.You need to login to perform this action.
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