| (A) Centre of mass of a body always coincides with the centre of gravity of the body. |
| (B) Centre of mass of a body is the point at which the total gravitational torque on the body is zero |
| (C) A couple on a body produce both translational and rotational motion in a body. |
| (D) Mechanical advantage greater than one means that small effort can be used to lift a large load. |
A) C and D
B) B and D
C) A and B
D) B and C
Correct Answer: B
Solution :
Centre of mass may or may not coincide with centre of gravity.
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