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    				| 1. | At what angle should the two forces 2P and `sqrt(2P)` and `Psqrt(2)P` act so that resultant force is `Psqrt(10)`?A. `45^(@)`B. `60^(@)`C. `90^(@)`D. `120^(@)` | 
| Answer» Correct Answer - A (a) `Psqrt(10)=sqrt(4P^(2)+2P^(2)+4sqrt(2)P^(2)costheta)` :. `theta=45^(@)` | |