The bar is subjected to equal and opposite forces as shown in the figure PQ is plane making angle with the cross-section of the bar. If the area of cross-section be 'a', then what is the tensile stress on PQ ?

The bar is subjected to equal and opposite forces as shown in the figu

1.	The bar is subjected to equal and opposite forces as shown in the figure PQ is plane making angle with the cross-section of the bar. If the area of cross-section be 'a', then what is the tensile stress on PQ ?
Answer» F/a `(F COS THETA)/(a)` `(F cos^2 theta)/(a)` `(F )/(a cos^2 theta )` ANSWER :C