Question

pls give the correct answer or i will loose more marks pls. answer this one and help me out guys ....!​

Answer 1

Simple question

As we know,that

if there is vector ai+bj

then

it's magnitude=(a^2+b^2)^1/2

so here

F=(64+36)^1/2

=10

now,here

|10×x|=20. (taking lambda=x)

x=2

so

lambda=2