Q.

A ball rolling on the ground slows down and finally stops. This is because: ________

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a

Electrostatic force is applied to the ball.

b

Gravitational force is applied to the ball

c

No force is applied to the ball

d

Frictional force is applied to the ball

answer is C.

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Detailed Solution

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  • A ball rolling on the ground slows down and finally stops. This is because of the frictional force between the ball and the ground.
  • It is an opposing force which arises when there is a relative motion between the two surfaces.
    Frictional force always acts in the opposite direction to the motion.
  • Therefore, a rolling ball stops after some time due to the frictional force exerted in the opposite direction to the motion of the ball.

 


 

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