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Question
A block sliding on a horizontal rough surface comes to rest after travelling some distance on it. The force which is responsible for stopping the block is:
Options:
A .  gravitational force
B .  magnetic force
C .  electrostatic force
D .  frictional force
Answer: Option D
:
D
Friction is a force that opposes relative motion between two surfaces in contact. A body sliding on a horizontal surface stops because the surface on which it slides resists its motion.

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