MHT CET 2026 15th April Evening Shift | Circular Motion Question 12 | Physics

A car of mass m is crossing the convex bridge of radius of curvature R with speed V. At the highest point the thrust is ($g$ = gravitational acceleration)

$mg$

$\dfrac{mv^2}{R}$

$mg - \dfrac{mv^2}{R}$

$mg + \dfrac{mv^2}{R}$

MHT CET 2026 15th April Evening Shift

MCQ (Single Correct Answer)

-0

A bucket containing water is revolved in vertical circle of radius r. To prevent the water from falling down, the period of revolution required is ($g$ = gravitational acceleration)

$2\pi\sqrt{\dfrac{g}{r}}$

$2\pi\sqrt{\dfrac{r}{g}}$

$2\pi\sqrt{rg}$

$\dfrac{\sqrt{rg}}{2\pi}$

MHT CET 2026 15th April Morning Shift

MCQ (Single Correct Answer)

-0

A particle performing U.C.M. of radius $\dfrac{\pi}{2}$ m makes 'x' revolutions in time t. Its tangential velocity is

$\dfrac{\pi x}{t}$

$\dfrac{\pi^2 x}{t}$

$\dfrac{\pi}{xt}$

$\dfrac{xt}{\pi}$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

A stone of mass ' m ' kg is tied to a string of length ' $L$ ' $m$ and moved in a vertical circle of radius 49 cm in a vertical plane. If it completes 30 revolutions per minute, the tension in the string when it is at the lowermost point is nearly [Take $\pi^2=10$ and acceleration due to gravity, $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ ]

$(90 \mathrm{~m}) \mathrm{N}$

$\quad(60 \mathrm{~m}) \mathrm{N}$

$(45 m) \mathrm{N}$

$(15 m) \mathrm{N}$

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