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  4. The greatest and least resultant of two forces acting at a point are 29 Kg wt. and 5, Kg wt. respectively. If each force is increased by 3 Kg w t the magnitude of the resultant of hew forces acting at right angles to each other is.

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Q. The greatest and least resultant of two forces acting at a point are 29 Kg wt. and 5, Kg wt. respectively. If each force is increased by 3 Kg w t the magnitude of the resultant of hew forces acting at right angles to each other is.

Motion in a Plane

Solution:

a + b = 29; a - b = 5 $\Rightarrow $ a = 17 , b = 12
$a' = 20, b' = 15$
$R'= \sqrt{20^2 + 15^2}$