Q)
(chatquestion)...78.
Figure shows a heavy block kept on a frictionless surface and being
pulled by two ropes of equal mass m. At t = 0, the force on the left
rope is withdrawn but the force on the right end continues to act.
Let F and F, be the magnitudes of the forces by the right rope and
the left rope on the block respectively.
Fi = F2= F+ mg for t < 0
Fi < F, F2 < F for t> 0
(B)
F = F2
F = F, F2 = F for t> 0
(A)
= F for t < 0
%3D
(C)
(D)...(What does t<0 mean ?)
...
