Question

If vector A = 2i^+4j^ then it's magnitude is (a)√20 (b) √10 (c) 4 (d) 6​

Answer 1

Explanation:

if there is any vector ai+bj

magnitude=√a^2+b^2

so magnitude of A=√(2)^2+(4)^2

=√20=2√5

hope it helps you my friend