USING TRIANGLE LAW OF VECTOR ADDITION: RESULTANT of vectors having magnitude 3 and 1=√1²+3²+2(1)(3)cos90• =>√10units and will be represented by a third side of triangle joined in opposite order. The above will be added with vector having magnitude 5√2 units. Therefore, Resultant={5√2+√10} [ since the direction of two vectors are same, therefore the direction of resultant will also be 45• with x axis.]
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