A horizontal curve on a racing track is banked at a 45^o angle. When a vehicle goes around this curv

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4-1.Newton's Laws of Motion

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A horizontal curve on $a$ racing track is banked at a $45^o $ angle. When a vehicle goes around this curve at the curve’s safe speed (no friction needed to stay on the track), what is its centripetal acceleration?

A$g$

B$2g$

C$0.5g$

Dnone

Solution

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Standard 11

Physics

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$Assertion$ : There is a stage when frictional force is not needed at all to provide the necessary centripetal force on a banked road.
$Reason$ : On a banked road, due to its inclination the vehicle tends to remain inwards without any chances of skidding.

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(AIIMS-2016)