hi I have a calculus question it says Two forces of 70 N act on an object. The forces form an angle of 57degree between them. Calculates the resultant force and the force that must be applied to the object to create balance. (Shows diagram of force vectors.)

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)