One body collides head on with a second body and they undergo a one-dimensional

Question

One body collides head on with a second body and they undergo a one-dimensional elastic collision. The figure shows graphs of position versus time for these bodies and for their centre 9.[lpt] of mass. Answer the questions below by choosing from the following options (e.g., if the answer to the first question is A, and to the others, B, enter ABBBB) 4115 A) line 1 D) line 4 G) greater than H) less than I) equal to I) cannot tell B) line 2 C) line 3 E) line 5 F) line 6 >>Which line segment corresponds to the centre of mass after the collision? >Which line segment corresponds to the centre of mass before the collision? >>The mass of the initially faster body is >>Which line segment corresponds to the initially faster body after the collision? >>Which line segment corresponds to the faster body before the collision? -the mass of the initially slower body Answer: Submit All Answers

Explanation / Answer

As the path of COM of the system remains constant so the position wrt time remains the same after and before collision from graph it can clearly observed and deduced that

That line 5 corresponds to the COM after collision and that line 2 represents COM before collision. Also the position of COM is more closer to the heavier mass so the mass of faster moving body (represented by line 1)is greater than slower moving body.

Note: the line 6 represents faster moving body after collision and line 1 represents faster moving body before collision.

So the answer is:EBGFA

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