10.
In the figure shown mass of person is 40 kg
and mass of plank is 20 kg. If person reaches
the other end in 2 seconds with constant
velocity, then find the velocity of person (w.r.t.
ground).
Initially the system was at rest.
(1) 5/3 ms-' (2) 5 ms-!
(3) 10/3 ms-1
(4) none of these
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3 10/3 Ms-1 it is the right answer
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