Question

rolling friction is smaller than...
a) sliding
b) static
c) fluid
d) all of the above​

Answer 1

Answer:

Rolling friction is smaller than sliding friction

Explanation:

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Answer 2

Answer:

Rolling friction is smaller than (a) sliding friction

Explanation:

Rolling friction is considerably less than sliding friction as there is no work done against the body that is rolling by the force of friction. For a body to start rolling a small amount of friction is required at the point where it rests on the other surface, else it would slide instead of roll.

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