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Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A car round on unbanked curve of radius $92 m$ without skidding at a speed of $26 m s^{- 1}$ . The smallest possible coefficient of static friction between the tyres and the road is

Options:

Answer:

Solution:

$f_{s} \leq f_{s (\max)}$

Centripetal force is equal to maximum static friction

$\frac{m v^{2}}{r} \leq μ m g$

$μ \geq \frac{v^{2}}{r g}$

$μ_{\min} = \frac{v^{2}}{r g}$

$μ_{\min} = \frac{{(26)}^{2}}{92 \times 9.8}$

$μ_{\min} = 0.75$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Circular MotionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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