Question
Download Solution PDFThe centre of mass of a rigid body lies-
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 4) i.e. either inside or outside the body
CONCEPT:
- Center of mass: Center of the mass of a body is the weighted average position of all the parts of the body with respect to mass.
- The centre of mass is used in representing irregular objects as point masses for ease of calculation.
- For simple-shaped objects, its centre of mass lies at the centroid.
- For irregular shapes, the centre of mass is found by the vector addition of the weighted position vectors.
EXPLANATION:
- The location of the centre of mass depends on two factors - the shape of the body and the distribution of the mass.
- The centre of mass can lie inside the body when the object is solid.
- In the case of a circular ring, the centre of mass lies at its geometric centre which is a point outside its body.
- Since the centre of mass is a point where the whole mass of the system appears to be concentrated, it is not necessary that this point should be inside the body.
- So, the centre of mass of a body can be either inside or outside the body.
Last updated on Jul 4, 2025
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