Question

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.

• A. 45 kg wt.
• B. 35 kg wt.
• C. 25 kg wt
• D. 15 kg wt

Answer 1

Answer: (C)

25 kg wt

Answer 2

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