A body is kept on a rough horizontal surface of angle of friction `'alpha'` and moved by applying a force of magnitude F making angle ` theta ` with horizontal . Arrange the following cases in the order of increasing magnitude for F .
F is pulling force and `theta = alpha `
F is pulling force and `theta = 0 `
F is pulling force and `alpha = theta = 0 `
F is pushing force and `theta = alpha `

Options

A. iv,iii,iiand i
B. I,ii,iii and iv
C. I,ii,iv and iii
D. iii,I ,ii and iv

Answer

D