Question

Two forces of magnitude 10N & 15N are acting at a point. The magnitude of their
resultant is 20N, find the angle between them.​

Answer 1

Answer:

x=10N and y=15N . a is the angle between them . 20=√10^2 +15^2 +2(10)(15)cos(a) => on squaring On both sides, we get 400=100+225+300cos(a)=> 400-325=75=300cos(a) => cos(a)= 1/4 => a=cos inverse (1/4).

Hope It will help you buddy...

Answer 2

Answer:

Two forces 5N &10N are acting at an angle of 120° between them. Find the resultant force in magnitude and direction.