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MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
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In case of well of death which is a vertical cylindrical wall of radius ' $r$ ' inside which vehicle is driven in horizontal circles. If ' $m$ ' is mass of vehicle, ' $V$ ' is the velocity and ' $\mu_s$ ' is the coefficient of static friction between the wheels of vehicle and walls then correct relation is [ $\mathrm{g}=$ acceleration due to gravity]

A
$\quad \mathrm{V}^2 \leq \frac{\mathrm{rg}}{\mu_{\mathrm{s}}}$
B
$\quad \mathrm{V} \leq \frac{\mathrm{rg}}{\mu_{\mathrm{s}}}$.
C
$\quad \mathrm{V}^2 \geqslant \frac{\mathrm{rg}}{\mu_{\mathrm{s}}}$
D
$\quad \mathrm{V} \geqslant \frac{\mathrm{rg}}{\mu_{\mathrm{s}}}$
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