Statement 1: |
A sphere is performing pure rolling on a rough horizontal with constant angular velocity. Frictional force acting on the sphere is zero |
Statement 2: |
Velocity of contact is zero |
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
c) |
Statement 1 is True, Statement 2 is False |
d) |
Statement 1 is False, Statement 2 is True |
Statement 1: |
A sphere is performing pure rolling on a rough horizontal with constant angular velocity. Frictional force acting on the sphere is zero |
Statement 2: |
Velocity of contact is zero |
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
c) |
Statement 1 is True, Statement 2 is False |
d) |
Statement 1 is False, Statement 2 is True |
(b) If angular velocity is constant, then frictional force acting on the sphere is zero. In case of pure rolling, velocity of contact point is zero |
Statement 1: |
The total kinetic energy of a rolling solid sphere is the sum of translational and rotational kinetic energies |
Statement 2: |
For all solid bodies total kinetic energy is always twice the translational kinetic energy |
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
c) |
Statement 1 is True, Statement 2 is False |
d) |
Statement 1 is False, Statement 2 is True |
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