Why a ball rolls???
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ʀᴇϙᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ
Simplified Answer
Balls are Spherical in shape and because of this their Surface area minimizes also friction plays an important role in same.
Explanation
The friction present between the surface pushes the atoms/particles in contact with surface or ground backwards, hence with centre of mass moving in a direction, the ball's bottom surface moves in opposite direction or backwards, causing the ball to roll.
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Answer:
Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact with each other without sliding.
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