MHT CET 2025 23rd April Morning Shift | Circular Motion Question 8 | Physics

Two bodies of mass 10 kg and 5 kg are moving in concentric circular orbits of radii ' R ' and ' r ' respectively such that their periods are same. The ratio between their centripetal acceleration is

$\mathrm{R} / \mathrm{r}$

$\quad \mathrm{r} / \mathrm{R}$

$\mathrm{R}^2 / \mathrm{r}^2$

$r^2 / R^2$

MHT CET 2025 22nd April Evening Shift

MCQ (Single Correct Answer)

-0

A car is driven on the banked road of radius of curvature 20 m with maximum safe speed. In order to increase its safety speed by $20 \%$, without changing the angle of banking, the increase in the radius of curvature will be [Assume friction is same on the road]

28.8 m

14.4 m

8.8 m

4.8 m

MHT CET 2025 22nd April Morning Shift

MCQ (Single Correct Answer)

-0

A vehicle is moving with uniform speed along 3 different shaped roads as horizontal, concave and convex. The surface of road on which, the normal reaction on vehicle is maximum is

convex

concave

horizontal

same on all the 3 surface

MHT CET 2025 22nd April Morning Shift

MCQ (Single Correct Answer)

-0

A vehicle is moving with a constant speed of $10 \mathrm{~m} / \mathrm{s}$ in a circular horizontal track of radius 20 m . A bob is suspended from the roof of a vehicle by a massless string. The angle made by the string with the vertical will be (acceleration due to gravity, $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )

$\tan ^{-1}(0.5)$

$\tan ^{-1}(0.6)$

$\tan ^{-1}(0.7)$

$\tan ^{-1}(0.8)$

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