Question

1) Two force measuring 40N each are applied from opposite sides on box A . A force of 40N applied on box B from one side and force of 20N is applied from the opposite side .
A . A balanced force is applied on which of the boxes ?
B . Which of the boxes will move ? Why ?​

Answer 1

Answer:

Explanation:Correct option is A)

Resultant force is nothing but the total force acting on a body including their directions. If the object is at rest or it moves with a same velocity, the resultant force should be zero. All forces are acting on same direction, resultant force should be the sum of all the forces.

In this case, two boys exert forces of 40N and 60N in opposite directions on an object. This means that one force goes with a plus sign and the other force goes with the minus sign.

That is, F R​ =F 1 −F 2​

=60N−40N=20N.

Hence, a force of 20 N acts in the direction of greater force.

Answer 2

Answer:

A). Box A

B). Box B. Because force of 40 N is applied from side x and 20 N from side y. So net force is of 20 N from x.