The forces : = 90 N, moving right, unbalanced forces
Further explanation
Given
The forces acting on an object
Required
The net force
Solution
Net force : the sum of all forces acting on an object
We agree that the move up and to the right is a positive sign, while down and to the left is a negative sign.
If we look at the net force, the direction of the forces are to the right (both forces, 60 N and 30 N)⇒horizontal motion
the same direction, add the forces
the opposite direction, subtract the forces
Unbalanced forces, the object will move
The object will not move if forces are balanced (net force = 0)
So the net force :
= 60 N + 30 N
= 90 N to the right