For Problem, use the formula method.A steel wide-flange section is used as a cantilever be...

For Problem, use the formula method.

A steel wide-flange section is used as a cantilever beam having a span of 12 ft. The beam supports a distributed load that varies uniformly from 5 kips/ft at the support to zero at the free end. Determine the required moment of inertia of the beam if the deflection is not to exceed times the span.