One person is pushing a box A of certain mass with 100 N force .Another box B of the same mass is pushed of in the same direction by other two persons .each of whom is exerrting 35 N force .The force is exerted on box A is just sufficient to make it move .Will the box B move ? Give reason in support of your answer.

Explanation

Since the boxes are of the same mass, same amount of forces are required to be applied to make them move.
The force applied on box B is (35+35) N = 70 N.
Since, 100 N is the minimum force required to move the box, 70 force cannot move the box B.