A) 12, 5
B) 14, 4
C) 5, 13
D) 10, 8
Correct Answer: C
Solution :
Let P be the smaller force and Q be the greater force then according to problem ? P + Q = 18 ......(i) \[R=\sqrt{{{P}^{2}}+{{Q}^{2}}+2PQ\cos \theta }=12\] .......(ii) \[\tan \varphi =\frac{Q\sin \theta }{P+Q\cos \theta }=\tan 90=\infty \] \ \[P\text{ }+\text{ }Q\text{ cos}\theta =0\] .......(iii) By solving (i), (ii) and (iii) we will get \[P=5,\] and \[Q=13\]You need to login to perform this action.
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