If two forces P and Q acting at 0 are represented by line OA and OB with φ being the angle between the two forces . find their resultant in R in terms of P


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Question Number 6778 by Tawakalitu. last updated on 24/Jul/16

$I f t w o f o r c e s P a n d Q a c t i n g a t 0 a r e r e p r e s e n t e d b y l i n e O A$ $a n d O B w i t h ϕ b e i n g t h e a n g l e b e t w e e n t h e t w o f o r c e s .$ $f i n d t h e i r r e s u l t a n t i n R i n t e r m s o f P$
Commented by prakash jain last updated on 25/Jul/16

$By cosine rule$ $R^{2} = P^{2} + Q^{2} + 2 PQcos \emptyset$
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