(Solved): 2. (10) A cobalt matrix is reinforced with 25% tungsten carbide fibers under isostrain eonditions. ...

2. (10) A cobalt matrix is reinforced with $25\%$ tungsten carbide fibers under isostrain eonditions. A force of $175,000\mathrm{N}$ is applied in the longitudinal direction. The elastic modulus for the matrix is $200\mathrm{GPa}$, the elastic modulus for the tungsten carbide is 635 GPa. Determine the elastic modulus for the composite. $158.75\mathrm{GPa}$ B. $150\mathrm{GPa}$ C. $635\mathrm{GPa}$ D. $200\mathrm{GPa}$ E. $526.25\mathrm{GPa}$ F. $476.25\mathrm{GPa}$ G. $50\mathrm{GPa}$ H. $308.75\mathrm{GPa}$ I. none of the above