Two blocks of masses `2.9 kg` and `1.9 kg` are suspended from a rigid support `S` by two inextensible wires each of length `1 m` , as shown in figure.The upper wire has negligible mass and the lower wires and support have an uniformly distributed mass of `0.2 kg` .The whole system of blocks, wire and support have an upwards acceleration of `0.2 m//s^(2)`. Acceleration due to gravity is `9.8 m//s^(2)`.
(a) Find the tension at the mid point of the lower wire.
(b)Find the tension at the mid point of the upper wire.

Options

A. tension at the mid-point of upper rope is 50 N.
B. tension at the mid-point of upper rope is 40 N.
C. tension at the mid-point of lower rope is 19.6 N.
D. tension at the mid-point of lower rope is 20 N.

Answer

A, D