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Two persons of mass m(1) and m(2) are st...

Two persons of mass `m_(1)` and `m_(2)` are standing at the two ends A and B respectively, of a trolley of mass M as shown.

When the person standing at A jumps from the. trolley towards left with `u_("re1")` with respect to the trolley, then

A

the trolley moves towards right

B

the trolley rebounds with velocity `(m_(1)u_("rel"))/(m_(1)+m_(2)+M)`

C

the centre of mass of the system remains stationary

D

all of the above

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