If the bolt in Fig. 12-13 is in., and weight W is 10 lb, find the height h that will caus...

If the bolt in Fig. 12-13 is in., and weight W is 10 lb, find the height h that will cause an impact stress of 40,000 psi in the gross area of the bolt. E = 30,000,000 psi; γ = 0.283 lb/in.3