KCET 2020 | Rotational Motion Question 8 | Physics

A wheel starting from rest gains an angular velocity of $$10 \mathrm{~rad} / \mathrm{s}$$ after uniformly accelerated for $$5 \mathrm{~s}$$. The total angle through which it has turned is

$$25 \mathrm{~rad}$$

$$100 \mathrm{~rad}$$

$$25 \pi \mathrm{~rad}$$

$$50 \pi \mathrm{~rad}$$ and a vertical axis

KCET 2020

MCQ (Single Correct Answer)

-0

A thin uniform rectangular plate of mass $$2 \mathrm{~kg}$$ is placed in $$x y$$-plane as shown in figure. The moment of inertial about $$x$$-axis is $$I_x=0.2 \mathrm{~kgm}^2$$ and the moment of inertia about $$Y$$-axis is $$I_y=0.3 \mathrm{~kgm}^2$$. The radius of gyration of the plate about the axis passing through $$O$$ and perpendicular to the plane of the plate is

KCET 2020 Physics - Rotational Motion Question 6 English

50 cm

5 cm

38.7 cm

31.6 cm

KCET 2019

MCQ (Single Correct Answer)

-0

A particle is moving uniformly along a straight line as shown in the figure. During the motion of the particle from $$A$$ to $$B$$, the angular momentum of the particle about $$O$$

KCET 2019 Physics - Rotational Motion Question 5 English

increase

decrease

remains constant

first increase then decrease

KCET 2018

MCQ (Single Correct Answer)

-0

Moment of inertia of a body about two perpendicular axes $X$ and $Y$ in the plane of lamina are $20 \mathrm{~kg}-\mathrm{m}^2$ and $25 \mathrm{~kg}-\mathrm{m}^2$, respectively. Its moment of inertia about an axis perpendicular to the plane of the lamina and passing through the point of intersection of $X$ and $Y$-axes is

$5 \mathrm{~kg}-\mathrm{m}^2$

$45 \mathrm{~kg}-\mathrm{m}^2$

$12.5 \mathrm{~kg}-\mathrm{m}^2$

$500 \mathrm{~kg}-\mathrm{m}^2$

KCET Subjects