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Question
Identify the correct statement(s).
Statement 1: Travelling bags have rollers in them because rolling friction is lesser than sliding friction.
Statement 2: Chairs with rollers are easier to move than four legged chair of same weight and material.
Identify the correct statement(s).
Statement 1: Travelling bags have rollers in them because rolling friction is lesser than sliding friction.
Statement 2: Chairs with rollers are easier to move than four legged chair of same weight and material.
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Solution
The correct option is C Both the statements are correct.
Travelling bags have rollers as rolling friction is lesser than sliding friction, hence rolling the bag is easier than sliding it.
Similarly, moving a chair with rollers in it is easier than moving a four legged chair.
Travelling bags have rollers as rolling friction is lesser than sliding friction, hence rolling the bag is easier than sliding it.
Similarly, moving a chair with rollers in it is easier than moving a four legged chair.
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