1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A disc of radius 0.4 m and mass one kg rotates about an axis passing through its centre and perpendicular to its plane. The angular acceleration of the disc is 10 rad/s$$^2$$. The tangential force applied to the rim of the disc is

A
4 N
B
1 N
C
2 N
D
8 N
2
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Three points masses, each of mass $m$ are placed at the corners of an equilateral triangle of side $\ell$. The moment of inertia of the system about an axis passing through one of the vertices and parallel to the side joining other two vertices, will be

A
$\frac{3}{4} m \ell^2$
B
$\frac{1}{4} m \ell^2$
C
$\frac{3}{2} m \ell^2$
D
$\frac{1}{2} m \ell^2$
3
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

A rope is wound around a solid cylinder of mass 1 kg and radius 0.4 m . What is the angular acceleration of cylinder, if the rope is pulled with a force of 25 N ? (Cylinder is rotating about its own axis.)

A
$125 \mathrm{~rad} / \mathrm{s}^2$
B
$10 \mathrm{~rad} / \mathrm{s}^2$
C
$1 \mathrm{~rad} / \mathrm{s}^2$
D
$50 \mathrm{~rad} / \mathrm{s}^2$
4
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two circular loop $A$ and $B$ of radii $R$ and $N R$ respectively are made from a uniform wire. Moment of inertia of $B$ about its axis is 3 times that of $A$ about its axis. The value of $N$ is

A
$[2]^{\frac{1}{3}}$
B
$[5]^{\frac{1}{3}}$
C
$[3]^{\frac{1}{3}}$
D
$[4]^{\frac{1}{3}}$
MHT CET Subjects
EXAM MAP