Question

The resultant of two forces 3N & 4N making an angle 180 each other

Answer 1

Answer:

1 N

Explanation:

Hi!

So we have 2 forces of 3N and 4N respectively

and the angle b/w them is 180 so

R^2=A^2+B^2+2ABcos180

So let the force of 3N be A and force on 4N be B

Hence

Putting the values

R^2=9+16 -2*3*4*(-1)

cos 180= -1

Hence on solving we have

R^2=25 (-24)N

R^2=1N

R=1N

I hope it helps you

PS when the angle is 180 degree the resultant  is greater force- smaller force {always Only for magnitude}

I hope it helps you