AP EAPCET 2022 - 4th July Morning Shift | Rotational Motion Question 3 | Physics

Consider a disc of radius $$R$$ and mass $$M$$. A hole of radius $$\frac{R}{3}$$ is created in the disc, such that the centre of the hole is $$\frac{R}{3}$$ away from centre of the disc. The moment of inertia of the system along the axis perpendicular to the disc passing through the centre of the disc is

$$\frac{M R^2}{2}$$

$$\frac{13}{27} M R^2$$

$$\frac{1}{3} M R^2$$

$$4 M R^2$$

AP EAPCET 2021 - 20th August Morning Shift

MCQ (Single Correct Answer)

-0

A sphere and a hollow cylinder without slipping, roll down two separate inclined planes A and B, respectively. They cover same distance in a given duration. If the angle of inclination of plane A is 30$$^\circ$$, then the angle of inclination of plane B must be (approximately)

60$$^\circ$$

53$$^\circ$$

45$$^\circ$$

37$$^\circ$$

AP EAPCET 2021 - 20th August Morning Shift

MCQ (Single Correct Answer)

-0

Four spheres each of diameter $$2 a$$ and mass $$m$$ are placed in a way that their centers lie on the four corners of a square of side $$b$$. Moment of inertia of the system about an axis along one of the sides of the square is

$$\frac{8}{5} m a^2$$

$$\frac{4}{5} m a^2+5 m b^2$$

$$\frac{4}{5} m a^2+2 m b^2$$

$$\frac{8}{5} m a^2+2 m b^2$$

AP EAPCET 2021 - 20th August Morning Shift

MCQ (Single Correct Answer)

-0

If an energy of 684 J is needed to increase the speed of a flywheel from 180 rpm to 360 rpm, then find its moment of inertia.

0.7 kg/m$$^2$$

1.28 kg/m$$^2$$

2.75 kg/m$$^2$$

7.28 kg/m$$^2$$

PREVIOUS NEXT

AP EAPCET Subjects