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A body is kept on a rough horizontal sur...

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.
i) F is pulling force and `theta= alpha`
ii) F is pulling force and `theta =0`
iii) F is pulling force and `alpha = theta =0`
iv) F is pushing force and `theta = alpha`

A

iv, iii, ii and i

B

i, ii, iii and iv

C

i, ii, iv and iii

D

iii, i, ii and iv

Text Solution

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The correct Answer is:
D
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