Recent content by LeftBrain

So I need to use rBC instead?

Homework Statement A (0,0,0) B(5,6,1) C(3,0,4) |F|= 1919N Homework EquationsThe Attempt at a Solution Cartesian: B= {5i + 6j + 1k} C= {3i + 4k} rCB ={2i + 6j - 3k} |rCB| = sqrt(22 + 62 + 32) = 7 Unit vector = rCB / |rCB| = {2/7i + 6/7j - 3/7k} F = |F| * Unit vector = 1919 {2/7i + 6/7j...

Homework Statement Glass fibres in Nylon provide reinforcement. Young's modulus of glass fibre is 72.4GPa; Young's modulus of Nylon is 2.8GPa. If the Nylon contains 30% by volume glass fibres, what fraction of the force applied parallel to the fibre axis is carried by the glass fibre? (Assume...