A wire of length L has mass μ per unit length. It is used to pull up a body of mass M upwards with acceleration α. What is the tension at the mid-point of the wire?
(g = acceleration due to gravity)
1
M(g + α)
2
(M + μL)g
3
\(\left(M+\frac{\mu L}{2}\right)(g+\alpha)\)
4
\(\left(M+\frac{\mu L}{2}\right)g\)