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Standard VIII
Physics
Effect of Nature of Surface on Friction
Two identical...
Question

Two identical balls A & B are placed on two different horizontal surfaces C & D respectively. When the same amount of force is applied on both the balls, B moves farther than ball A. Choose the correct statement.

A
Friction between A and C is greater than B and D.
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B
Friction between B and D is greater than A and C.
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C
Friction between B and D is lesser than A and C.
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D
Friction between A and C is lesser than B and D.
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Solution

The correct options are
A Friction between A and C is greater than B and D.
C Friction between B and D is lesser than A and C.
It is given, two identical balls are placed on two different horizontal surfaces. If the same amount of force is applied on both the balls, B travels farther than A. From the above statement we can infer that frictional acting between A and C is greater than frictional force between B and D.

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