Question

can any1 explain me how to solve problems related to angles in laws of motion like for ex this sum

two equal forces are acting at a point with an angle of 60 degrees between them.it the resultant force is equal to 40 root 3 N,the magnitude of each force is

Answer 1

If two equal forces acting at a point with an angle Ф
then magnitude of resultant force is
= 2Fcos(Ф/2)
40√3 = 2 F Cos (60/2)
20√3= F √3/2
then. F = 40 N
Hance the magnitude of each force is 40 N..