Which of following statements are correct ? l (a) Centre of mass of a body always coincides with the centre of gravity of the body (b) Central of mass of a body is the point at which the total garvitational torque on the body is zero (c ) Couple on a body produces both trasnlational and rotation motion in a body (d) Mechinical advantage greater than one means that small efforts can be used to lift a large load

Which of following statements are correct ? l (a) Centre of mass of a

1.	Which of following statements are correct ? l (a) Centre of mass of a body always coincides with the centre of gravity of the body (b) Central of mass of a body is the point at which the total garvitational torque on the body is zero (c ) Couple on a body produces both trasnlational and rotation motion in a body (d) Mechinical advantage greater than one means that small efforts can be used to lift a large load
Answer» SOLUTION :If the gravitational field is non-uniform, then the CENTRE of MASS and centre of gravity will not coincide.