A) Sand paper
B) Cardboard sheet
C) Frosted glass sheet
D) Wrinkle-free towel
Correct Answer: D
Solution :
Among the given surfaces, the towel offers the greatest frictional resistance to the rolling of the ball over it. A towel is made up of cotton threads that offer a great amount of resistance, i.e., frictional force, to any motion over their surface. As the ball rolls down and moves on the towel, it stops quickly after travelling the shortest distance. This is because the friction offered by the towel surface to the moving ball is the greatest among the given surfaces. The correct answer is D.You need to login to perform this action.
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