Question

A uniform plank of Young's modulus Y is moved over a
smooth horizontal surface by a constant horizontal force
F. The area of cross-section of the plank is A. the
compressive strain on the plank in the direction of the
force is
(1) F/AY (2) 2F/AY
(3)F/2AY
(4)3F/AY​

Answer 1

Y = Stress / Strain
Strain = F/AY