Identify the correct statement. (a) Centre of mass is a fixed property for a given rigid body irrespective of its orientation. b) Centre of gravity depends on the orientation of the body. (c) For uniform gravitational fields, centre of gravity coincides with the centre of mass. (d) All of these.
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Answered by
9
Answer:
option d all of these
Explanation:
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Answered by
1
Answer:
The right answer is option(d): all of these.
Explanation:
- Statement 1:
- A body is assumed to be a point mass at the center of mass.
- The point where the total mass of the body is concentrated, is called the center of mass.
- So, statement 1 is considered to be true.
- Statement 2:
- A center of gravity of a body is always seen to coincide with the body's center of mass.
- So, automatically the center of gravity depends on the orientation of the body.
- Thus, statement 2 is also correct.
- Statement 3:
- The point where gravity acts are known as the Center of gravity.
- The center of gravity and the center of the mass resides in the same location.
- But they are the same only when the Gravity field is uniform.
- Hence, statement 3 is also correct.
Since all the given statements are true and interrelated so the correct answer is an option (d): all of these.
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