Repeat Problem for a shaft having two flats, resulting in a total measurement across the f...

Repeat Problem for a shaft having two flats, resulting in a total measurement across the flats of 1.25 in.

Problem

For the steel shaft shown in Figure, compute the angle of twist of one end relative to the other if a torque of 850 lb-in is applied uniformly along the length.

FIGURE

FIGURE Problem.