Forces of 100 N each are applied in opposite direction on the upper and lower faces of a cube of side 20 cm. The upper face is shifted parallel to itself by 0.25 cm. If the side of the cube were 10 cm, then the displacement would be

Options

A. 0.25 cm
B. 0.5 cm
C. 0.75 cm
D. 1 cm

Answer

B

Explanation

`eta=(Fl)/(Atrianglel)=(Fl)/(l^2trianglel)=(F)/(ltrianglel)` or `trianglelprop(1)/(l)`
If `l` is halved, then `trianglel` is doubled.