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Question

A toy car released with the same initial speed will travel farthest on


A

muddy surface

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B

polished marble surface

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C

cemented surface

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D

brick surface

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Solution

The correct option is B

polished marble surface


  1. Friction force opposes the motion of the object.
  2. If the friction is more distance travelled will be less for the same initial velocity.
  3. If the friction is less distance travelled will be more for the same initial velocity.
  4. Frictional force on polished marble surface is minimum among muddy surface, cemented surface, polished marble surface and brick surface.
  5. So, the toy car released with the same initial speed will travel farthest on polished marble surface.

Hence, option (b) is correct.


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