Question

two forces each of magnitude 5N are inclined to each other at 60 degree .find the magnitude and direction of their resultant

Answer 1

Resultant force = 5√3 N

Answer 2

Answer:

5N

Explanation:

Given two forces are 5N ; are inclined at 60⁰.

We know ,

R^2 = a^2 + b^2 + 2 a b cos theta.

=> R = [ a^2 + b^2 + 2 a b cos 60⁰ ]^1/2

=> R = [ a^2 + b^2 + a b ]^1/2

Now ,

a = 5N and b = 5N .

Therefore ,

=> R = ( 5^2 + 5^2 + 5 × 5 )^1/2

=> R = ( 5^2 + 5^2 + 5^2 )^1/2

Therefore ,

R = 5 root 3. [ANSWER]

HOPE THIS WILL HELP YOU !

THANK YOU.