I think the question meant to say net force on the box. Since force is a vector, the direction matters. 20N left is negated completely by the 50N right, which means the net force is 50N-20N to the right, 30N.
A- PRICE
B-QUANTITY
C-SUPPLY
D-DEMAND
E-EQUILIBRIUM POINT
Explanation:
It is the Supply Demand curve in Economics. It gives relationship between price and quantity
Scientific theory because it's a theory it's already an answer but it might change depending on the condition.
I'm not completely sure, but I think it's 3.4 newtons. I hope you get it correct.
