A uniform elastic plank moves over a smooth horizontal plane due to a constant force F, distributed uniformly over the end face. The surface of the end face is equal to A and Young.s modulus of the material is Y. Find the compressive strain of the plank in the direction of the acting force.

A uniform elastic plank moves over a smooth horizontal plane due to a

1.	A uniform elastic plank moves over a smooth horizontal plane due to a constant force F, distributed uniformly over the end face. The surface of the end face is equal to A and Young.s modulus of the material is Y. Find the compressive strain of the plank in the direction of the acting force.
Answer» ANSWER :`(F_(0))/(2ALY)L^(2) or Delta l=(F_(0)L)/(2AY)`