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Two forces P and Q act at an angle of 12...

Two forces `P` and `Q` act at an angle of `120^(@)` with each other. If the resultant is at right angles to `P` and `P` is equal to `4kg-wt`, then the value of `Q` is

A

`4 kg wt.`

B

`8 kg wt.`

C

`6 kg wt.`

D

`3 kg wt.`

Text Solution

Verified by Experts

The correct Answer is:
B

`Qsin30=P`
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