Two forces of 50 and 70 N (newtons) act on an object. The angle between the forces is 40°. Find the magnitude of the resultant and the angle that it makes with the smaller force.

Question

Two forces of  50 and  70 N (newtons) act on an object. The angle between the forces is  40°. Find the magnitude of the resultant and the angle that it makes with the smaller force.

bobpursley · Answer

Draw the diagram. Establish an x axis along the direction of the 50N force. break the other force in to x, y componsnts. Add the forces as vectors in x,y directions.

Then use your trig to find the resultant. I will be happy to critique your work.

Henry · Answer

Fr = 50N[0o] + 70N[40o] = Resultant force.