Rotational motion | Neet Previous year questions | Rotational motion Neet Past year questions l

ROTATIONAL MOTION | NEET PREVIOUS YEAR PAPERS | 2013 to 2020 | PHYSICS | PROF RAM SHARMA | ROTATIONAL MOTION NEET PREVIOUS YEAR QUESTIONS | ROTATIONAL MOTION NEET PAST YEAR QUESTIONS | ROTATIONAL MOTION NEET PREVIOUS YEAR SOLUTIONS | ROTATIONAL MOTION NEET PAST YEAR SOLUTIONS

#RotationalMotionNeetSolutions

This video contains solutions of all mcq's of neet asked from 2013 to 2020 for the chapter rotational motion of physics subject .

0:00 Rotational motion Neet question and answers

0:21 A rod PQ of mass M and length L is hinged
at end P. The rod is kept horizontal by a
massless string tied to point Q as shown in
figure. When string is cut, the initial angular
acceleration of the rod is

2:41 A small object of uniform density rolls up a
curved surface with an initial velocity ‘v’. It
reaches upto a maximum height of
3 v^2 / 4g
with
respect to the initial position. The object is

5:09 A solid cylinder of mass 50 kg and radius
0.5 m is free to rotate about the horizontal
axis. A massless string is wound round the
cylinder with one end attached to it and other
hanging freely. Tension in the string required
to produce an angular acceleration
of 2 revolutions

7:44 The ratio of the accelerations for a solid sphere
(mass m and radius R) rolling down an incline
of angle without slipping and slipping down
the incline without rolling is

9:11 A rod of weight W is supported by two parallel
knife edges A and B and is in equilibrium in a
horizontal position. The knives are at a
distance d from each other. The centre of mass
of the rod is at distance

12:21 Three identical spherical shells, each of mass
m and radius r are placed as shown in figure.
Consider an axis XX which is touching to two
shells and passing through diameter of third
shell. Moment of inertia of the system
consisting of these three spherical shells about
XX axis is


14:54 An automobile moves on a road with a speed
of 54 km h–1. The radius of its wheels is
0.45 m and the moment of inertia of the wheel
about its axis of rotation is 3 kg m2
. If the
vehicle is brought to rest in 15 s, the magnitude
of average torque transmitted by its brakes
to the wheel is

16:47 Point masses
m1
and m2
are
placed at the
opposite ends of a
rigid rod of length
L, and negligible
mass. The rod is to
be set rotating
about an axis
perpendicular to it.
The position of point P on this rod through
which the axis should pass so that the work
required to set the rod rotating with angular
velocity 0 is minimum, is given by

18:49 A force ai+6j+3k
is acting at a point
r = 2i - 6j - 12k
. The value of a for which
angular momentum about origin is conserved

20:30 Two rotating bodies A and B of masses m and
2m with moments of inertia IA
and IB
(IB
greater IA
)
have equal kinetic energy of rotation. If LA
and
LB
be their angular momenta respectively, then

21:19 A solid sphere of mass m and radius R is
rotating about its diameter. A solid cylinder of
the same mass and same radius is also rotating
about its geometrical axis with an angular
speed twice that of the sphere. The ratio of
their kinetic energies of rotation

22:28 A light rod of length l has two masses m1
and
m2
attached to its two ends. The moment of
inertia of the system about an axis
perpendicular to the rod and passing through
the centre of mass is

24:25 From a disc of radius R and mass M, a circular
hole of diameter R, whose rim passes through
the centre is cut. What is the moment of inertia
of the remaining part of the disc about a
perpendicular axis, passing through the centre?

27:50 A uniform circular disc of radius 50 cm at rest
is free to turn about an axis which is
perpendicular to its plane and passes through
its centre. It is subjected to a torque which
produces a constant angular acceleration of
2.0 rad s–2. Its net acceleration in m s–2 at the
end of 2.0 s is approximately

29:37 A disc and a sphere of same radius but different
masses roll off on two inclined planes of the
same altitude and length. Which one of the two
objects gets to the bottom of the plane first?

31:30 A rope is wound around a hollow cylinder of
mass 3 kg and radius 40 cm. What is tliangular acceleration of the cylinder if the rope
is pulled with a force of 30 N?

32:48 Two discs of same moment of inertia rotating
about their regular axis passing through centre
and perpendicular to the plane of disc with
angular velocities w1
and w2
. They are brought
into contact face to face coinciding the axis
of rotation. The expression for loss of energy
during this process is

34:46 Which of the following statements are correct?
(1) Centre of mass of a body always coincides
with the centre of gravity of the body.
(2) Centre of mass of a body is the point at
which the total gravitational torque on the
body is zero.

[shagufazafar]

Is vedio me bhut axcha explain keya hai sir
Thanks😊😊

[anaspirant]

Thank You so much Sir, i got this video after many searching.Fully satisfied with your awesome conceptual explanations within less time.❤🙏

[Achladevi]

Tqsm sir pr phase 2 k com k ques btadijiye plz it's lil hard

[nahidakhan]

Thank u so much sir❤️❤️
1st like and comment

[gokul]

Please tell me neet examination will postpone?
In your opinion
Please give me.proper guidance.🙏