2) Four planar wires are attached to a particle,as shown in the diagram. (Note: in the diagram we are looking down from above the particle, so gravity is directed out of the plane of the page.we can ignore gravity for this question). (a) Using the unit vectors i and i shown in the diagram, show that the force of 60N may be written as (15.5i - 58.0j) N.

(b) Find the components of the force labelled I required for the particle tobe in equilibrium. Hence, calculate the magnitude T =|I| and the direction angle 8 of this wire.