New ! Physics MCQ Practise Tests



11th Standard English Medium Physics Subject Motion of System of Particles and Rigid Bodies Book Back 3 Mark Questions with Solution Part - II

11th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Physics

Time : 00:30:00 Hrs
Total Marks : 15

    Part I

    5 x 3 = 15
  1. The position vectors of two point masses 10 kg and 5 kg are \((-3\vec{i}+2\vec{j}+4\vec{k})\) m and \((-3\vec{i}+6\vec{j}+5\vec{k})\) m respectively. Locate the position of center of mass.

  2. A cyclist while negotiating a circular path with speed 20 m s-1 is found to bend an angle by 30° with vertical. What is the radius of the circular path? (given, g = 10 m s-2)

  3. Find the radius of gyration of a disc of mass M and radius R rotating about an axis passing through the center of mass and perpendicular to the plane of the disc.

  4. Find the rotational kinetic energy of a ring of mass 9 kg and radius 3 m rotating with 240 rpm about an axis passing through its center and perpendicular to its plane. (rpm is a unit of speed of rotation which means revolutions per minute).

  5. Four round objects namely a ring, a disc, a hollow sphere and a solid sphere with same radius R start to roll down an incline at the same time. Find out which object will reach the bottom first.

*****************************************

Reviews & Comments about 11th Standard English Medium Physics Subject Motion of System of Particles and Rigid Bodies Book Back 3 Mark Questions with Solution Part - II updated Book back Questions

Write your Comment