All India Engineering / Architecture Entrance Examination (AIEEE)
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AIEEE 2007 Physics
Q. 33. A round uniform body of radius R, mass M and moment of inertia I rolls down (without slipping) an inclined plane making an angle 
with the horizontal. Then its acceleration is
Sol: 
Correct choice: (1)
Q. 34. Angular momentum of the particle rotating with a central force is constant due to
- constant force
- constant linear momentum
- zero torque
- constant torque
Sol: Central force is directed towards a point, therefore torque of the central force is zero. Correct choice: (3)
Q. 35. s A 2 kg block slides on a horizontal floor with a speed of 4 m/s. It strikes a uncompressed spring, and compresses it till the block is motionless. The kinetic friction force is 15 N and spring constant is 10,000 N/m. The spring compresses by
- 5.5 cm
- 2.5 cm
- 11.0 cm
- 8.5 cm
Sol: 
Correct choice: (1)