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If no external force acts on a system...

If no external force acts on a system

A

(a) velocity of centre of mass remains constant

B

(b) position of centre of mass remains constant

C

(c) acceleration of centre of mass remains non-zero and constant

D

(d) All of the above

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Statement I: No external force acts on a system of two spheres which undergo a perfectly elastic head-on collision. The minimum kinetic energy of this system is zero if the net momentum of the system is zero. Statement II: If any two bodies undergo a perfectly elastic head-on collision, at the instant of maximum deformation. the complete kinetic energy of the system is converted to' deformation potential energy of the system.

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