Q)
(chatquestion)...Two persons A and B are standing at the two
opposite ends of a plank of length 4 m as shown in
the figure. Plank is kept on a frictionless horizontal
surface. Displacement of plank, when A and B
interchange their positions on the plank is
b (Given mA
3.
40 kg, mg = 60 kg, mplank = 20 kg)
%3D
%3D
re or
od lw
4 m-
(1) m
(3)
4
(4)
3
2/3
45
1 Answer
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