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Q.

A toy car released at the same initial speed will travel the greatest distance on:


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a

Brick surface

b

Cemented surface

c

Polished marble surface

d

Muddy surface 

answer is C.

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Detailed Solution

A toy car released at the same initial speed will travel the greatest distance on Polished marble surface.
The object's motion is opposed by friction force. If the friction is greater, the distance travelled for the same initial velocity will be less. If the friction is low, the distance travelled for the same initial velocity will be greater. Among muddy surfaces, cemented surfaces, polished marble surfaces, and brick surfaces, the frictional force on polished marble surfaces are the least. As a result, the toy car launched at the same initial speed will travel the furthest on the polished marble surface.
 
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