Questions
A system of particles is free from any external force. If be the velocity and acceleration of the centre of mass, then it necessarily follows that
detailed solution
Correct option is D
Absence of external force, only confirms about the fact that a→ = 0. However, v→ may or may not be zero.Talk to our academic expert!
Similar Questions
Shown in the figure is a system of three particles of mass 1 kg, 2 kg and 4 kg connected by two springs. The acceleration of A, B and C at any instant are 1 ms-2, 2 ms-2 and 1/2 ms-2 respectively directed as shown in the figure external force acting on the system is:
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