A mobile consisting of a horizontal bar of length 70cm and negligible mass from which two decorations are hung up by light strings. The bar is suspended by a vertical wire. Assume two significant digits in the given data.
a) How far from the left-hand end of the wire is the vertical wire attached?
b) What is the magnitude of the tension in the wire?
Homework Answers
Question is based upon the fact that if many forces acted upon a system of body which is free to move about a point then if it is in equilibrium then Sum of moments of all the forces will be zero..Also sum of forces in vertical and horizontal directions will be also zero.
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