TG EAPCET 2024 (Online) 9th May Morning Shift | Circular Motion Question 5 | Physics

A car is moving on circular track banked at an angle of $45^{\circ}$. If the maximum permissible speed of the car to avoid slipping is twice the optimum speed of the car to avoid the wear and tear of the tyres, then the coefficient of static friction between the wheels of the car and the road is

0.3

0.5

0.4

0.6

TS EAMCET 2023 (Online) 14th May Evening Shift

MCQ (Single Correct Answer)

-0

If the radii of circular path of two particles of same mass are in the ratio of $1: 2$, then to have a constant centripetal force, the ratio of their speeds should be

$4: 1$

$1: \sqrt{2}$

$1: 4$

$\sqrt{2}: 1$

TS EAMCET 2023 (Online) 13th May Evening Shift

MCQ (Single Correct Answer)

-0

A car is travelling with linear velocity $v$ on a circular road of radius $r$. If its velocity is increasing at a rate of $a \mathrm{~ms}^{-2}$, then the resultant acceleration will be

$\sqrt{\left(\frac{v^2}{r^2}-a^2\right)}$

$\sqrt{\left(\frac{v^4}{r^2}+a^2\right)}$

$\sqrt{\left(\frac{v^4}{r^2}-a^2\right)}$

$\sqrt{\left(\frac{v^2}{r^2}+a^2\right)}$

TS EAMCET 2023 (Online) 12th May Morning Shift

MCQ (Single Correct Answer)

-0

The angular speed of a particle moving in a circular path is doubled. Then, the centripetal acceleration of the particle is

4 times the initial centripetal acceleration

halved

doubled

unchanged

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