0 votes
24 views
in Physics by (11.6k points)
closed by

Find resultant of two vectors when the two vectors are 

(a) along the same direction,

(b) along opposite direction,

(c) at right angles to each other.

1 Answer

+1 vote
by (10.7k points)
selected by
 
Best answer

Using  R=\(\sqrt{P^2+Q^2+2PQ\,cos\,\theta}\)

and   \(tan\,\alpha=\frac{Q\,sin \theta}{P+Q\,cos\,\theta}\)

(a) R = P + Q if α = 0º

(b) R = P – Q or R = Q – P if α = 180º depends on P > Q or Q > P.

(c) R = \(\sqrt {P^2+Q^2}\,\alpha=tan^{-1}\frac{Q}{P}\)

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...