A bar of length L0=3.77 m is placed on two rigid supports as shown in the figure. As a result of rise in temperature by 32 ∘C , bar cracks at its centre and buckles upward as shown in the figure. The fixed distance between the supports is also L0=3.77 m and coefficient of linear expansion of the bar is 25×10−6/ ∘C. Find the rise x of centre of the bar.