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In the figure-4.133 shown A is a ball of...

In the figure-4.133 shown A is a ball of mass 2kg fixed at its position and `S_(1), S_(2)` are the walls facing A. Another ball B of mass 4 kg incident on the wall at an angle of incidence `60^(@)` and then successively it collides elastically with wall and as shown in figure-4.132. Trace the locus of centre of mass of the two balls during the motion of the ball B

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