PYQSide ExamsMy practice

System of Particles and Rotational Motion · Question 89

AIPMT 2002MCQMedium📈 Topic in 12% papers+4−1
1

A solid sphere of radius R is placed on smooth horizontal surface. A horizontal force F is applied at height h from the lowest point. For the maximum acceleration of centre of mass, which is correct ?

  1. h = R
  2. h = 2R
  3. h = 0
  4. no relation between h and R.

Answer

(4) no relation between h and R.

Solution

The surface is smooth, so the only horizontal external force on the sphere is F.

acm = FM for every value of h

(h only changes the torque about the centre and hence the angular acceleration, not acm.)

The acceleration of the centre of mass does not depend on h; there is no relation between h and R.

Answer: (4)

AIPMT 2002

Keep practising — System of Particles and Rotational Motion

2

A disc is rotating with angular speed . If a child sits on it, what is conserved

  1. linear momentum
  2. angular momentum
  3. kinetic energy
  4. potential energy
AIPMT 2002
3

A circular disc is to be made by using iron and aluminium so that it acquired maximum moment of inertia about geometrical axis. It is possible with

  1. aluminium at interior and iron surround to it
  2. iron at interior and aluminium surround to it
  3. using iron and aluminium layers in alternate order
  4. sheet of iron is used at both external surface and aluminium sheet as internal layers.
AIPMT 2002
4

A disc is rolling, the velocity of its centre of mass is vcm. Which one will be correct?

  1. the velocity of the highest point is 2vcm and of the point of contact is zero
  2. the velocity of the highest point is vcm and of the point of contact is vcm
  3. the velocity of the highest point is 2vcm and of the point of contact is vcm
  4. the velocity of the highest point is 2vcm and of the point of contact is 2vcm.
AIPMT 2001
5

For the adjoining diagram (a uniform right-angled triangular plate ABC), the correct relation between I1, I2 and I3 is (I – moment of inertia about the marked side) [figure]

  1. I1 > I2
  2. I2 > I1
  3. I3 > I1
  4. I3 > I2
AIPMT 2000
6

For a hollow cylinder and a solid cylinder rolling without slipping on an inclined plane, then which of these reaches earlier

  1. solid cylinder
  2. hollow cylinder
  3. both simultaneously
  4. can't say anything
AIPMT 2000

All System of Particles and Rotational Motion PYQs →

PDFDownload System of Particles and Rotational Motion PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Physics chapters
Class 11Units and MeasurementsMotion in a Straight LineMotion in a PlaneLaws of MotionWork, Energy and PowerSystem of Particles and Rotational MotionGravitationMechanical Properties of SolidsMechanical Properties of FluidsThermal Properties of MatterThermodynamics (Physics)Kinetic TheoryOscillationsWaves
Class 12Electric Charges and FieldsElectrostatic Potential and CapacitanceCurrent ElectricityMoving Charges and MagnetismMagnetism and MatterElectromagnetic InductionAlternating CurrentElectromagnetic WavesRay Optics and Optical InstrumentsWave OpticsDual Nature of Radiation and MatterAtomsNucleiSemiconductor ElectronicsExperimental Skills (Physics)