Question

State whether the force is balanced or unbalanced in the following situation and give reason for your answer. in the game of tug of war the two teams apply force but the rope does not move , a ball rolling on the ground stops after sometime ​

Answer 1

Answer:

in the first case (tug of war), the force is balanced, while in the second case (rolling ball) it is unbalanced.

Explanation:

For there to be a non-zero net force, the object on which the force is applied should move with some acceleration. This will be unbalanced force. If the object is at rest or moving with constant velocity, then the net force acting on it will be zero and it will be balanced.

In the case of tug of war, the rope (object) is at rest, thus there is a zero net force and the forces are balanced.

In the case of the rolling ball, the velocity of ball decreases until it stops, thus we can say it is experiencing a negative acceleration, and so the force is non-zero and unbalanced.