Question:
A body $A$ of mass $M$ while falling vertically downwards under gravity breaks into two parts; a body $B$ of mass $\frac{2}{3}\,M.$ The centre of mass of bodies $B$ and $C$ taken together shifts compared to that of body $A$ towards :
A body $A$ of mass $M$ while falling vertically downwards under gravity breaks into two parts; a body $B$ of mass $\frac{2}{3}\,M.$ The centre of mass of bodies $B$ and $C$ taken together shifts compared to that of body $A$ towards :
Updated On: Jul 2, 2022
- depends on height of breaking
- does not shift
- body $C$
- body $B$
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The Correct Option is B
Solution and Explanation
Since, the acceleration of centre of mass in both the cases is same equal to g. So the centre of mass of the bodies $B$ and $C$ taken together does not shift compared to that of body $A$.
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Concepts Used:
System of Particles and Rotational Motion
- The system of particles refers to the extended body which is considered a rigid body most of the time for simple or easy understanding. A rigid body is a body with a perfectly definite and unchangeable shape.
- The distance between the pair of particles in such a body does not replace or alter. Rotational motion can be described as the motion of a rigid body originates in such a manner that all of its particles move in a circle about an axis with a common angular velocity.
- The few common examples of rotational motion are the motion of the blade of a windmill and periodic motion.