the resultant of a 5N& a 2N force acting simultaneously on an object in the same direction is in Newton
(a) 0
(b)7
(c)5
(d)13

Question

the resultant of a 5N& a 2N force acting simultaneously on an object in the same direction is in Newton
(a) 0
(b)7
(c)5
(d)13

anonymous · Answer

It would be 7 N , B

anonymous · Answer

Can you explain me how did you solve?

anonymous · Answer

Well its a vector addition basically. They're both in the same direction acting on the object. An example would be one person pulling on a box with a force of 5 N to the left and someone else pushing on the box with a force of 2 N to the left also. Because the forces are both acting in the same direction (left) all you have to do is add them. So the total force (net force) would be 7 N to the left. 
If the one force had been in the opposite direction you would have needed to subtract the two vectors rather than add.