Question

Four children were asked to arrange forces due to rolling, static and sliding frictions in a decreasing order. Choose the correct arrangement.

• A. 1st boy - static, rolling, sliding
• B. 2nd boy -rolling, sliding, static
• C. 3rd boy - static, sliding, rolling
• D. 4th boy - sliding, static, rolling

Answer 1

The correct option is C 3rd boy - static, sliding, rolling

Static, sliding, rolling friction is the decreasing order of magnitudes of friction. The third boy is correct in arranging the friction in decreasing order. Rolling is the smallest frictional force while static friction being the largest out of all the three.