The manufacturer of a welded steel bracket specifie the working loads depicted in the fi...

The manufacturer of a welded steel bracket specifie the working loads depicted in the figur of R_n versus R_t. Values of R_n and R_t that lie within the shaded region are allowable, while values that lie outside of the region are unsafe. Such a diagram is often called an interaction diagram because it characterizes the combined effect that multiple loads have on the strength of a component. For the loading and geometry shown, determine the range of values load P may have and still satisfy the manufacturer’s combined loading criterion.