A circular rod of length l = 2 m is subjected to a compressive load P, as shown in the figure. The bending (flexural) rigidity of the rod is 2000 Nm2 . If both ends are pinned, then the critical load Pcr in N (rounded to the nearest integer) at which the rod buckles elastically is

A circular rod of length l = 2 m is subjected to a compressive load P,

1.	A circular rod of length l = 2 m is subjected to a compressive load P, as shown in the figure. The bending (flexural) rigidity of the rod is 2000 Nm2 . If both ends are pinned, then the critical load Pcr in N (rounded to the nearest integer) at which the rod buckles elastically is
A.	4935
B.	2000
C.	5167
D.	1238
Answer» B. 2000