1
AIEEE 2005
+4
-1
An annular ring with inner and outer radii $${R_1}$$ and $${R_2}$$ is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring, $${{{F_1}} \over {{F_2}}}\,$$ is
A
$${\left( {{{{R_1}} \over {{R_2}}}} \right)^2}$$
B
$${{{{R_2}} \over {{R_1}}}}$$
C
$${{{{R_1}} \over {{R_2}}}}$$
D
$$1$$
2
AIEEE 2005
+4
-1
The moment of inertia of a uniform semicircular disc of mass $$M$$ and radius $$r$$ about a line perpendicular to the plane of the disc through the center is
A
$${2 \over 5}M{r^2}$$
B
$${1 \over 4}Mr$$
C
$${1 \over 2}M{r^2}$$
D
$$M{r^2}$$
3
AIEEE 2004
+4
-1
One solid sphere $$A$$ and another hollow sphere $$B$$ are of same mass and same outer radii. Their moment of inertia about their diameters are respectively $${I_A}$$ and $${I_B}$$ such that
A
$${I_A} < {I_B}$$
B
$${I_A} > {I_B}$$
C
$${I_A} = {I_B}$$
D
$${{{I_A}} \over {{I_B}}} = {{{d_A}} \over {{d_B}}}$$ where $${d_A}$$ and $${d_B}$$ are their densities.
4
AIEEE 2004
+4
-1
A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same which on of the following will not be affected ?
A
Angular velocity
B
Angular momentum
C
Moment of inertia
D
Rotational kinetic energy
EXAM MAP
Medical
NEET