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Three forces are acting on a particle as...

Three forces are acting on a particle as shown in the figure. To have the resultant force only along the Y-direction, the magnitude of the minimum additional force needed is

A

`sqrt3N`

B

`0.5N`

C

`1.5N`

D

`(sqrt3)/(4)N`

Text Solution

Verified by Experts

The correct Answer is:
B
`1xxcos60^(@)+2xxsin30^(@)-4sin30^(@)+F=0`
`(1)/(2)+1-2+F=0rArr F=(1)/(2)N`
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