Per NCERT, why does a moving object on a real horizontal surface EVENTUALLY come to rest — even though Newton's First Law would predict constant velocity?
AThe Earth tilts
BFriction (and air resistance) act as opposing forces, decelerating the object until it stops
CTime slows down
DNewton's First Law is incorrect
Answer & Solution
Correct answer: B. Friction (and air resistance) act as opposing forces, decelerating the object until it stops
Per NCERT §6.4 Note, in the real world friction provides a net opposing force that decelerates the object. Newton's First Law applies when frictional effects are eliminated.
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