What is Exploring forces

Exploring forces

Force and pressure


What happens when more than one force is
acting on a body? Consider the example of a
game of tug-of-war. In this game, two opposite
teams pull a rope in opposite directions. A red
ribbon is tied at the middle of the rope and the
ground marked accordingly. The team which is
able to pull the ribbon towards itself wins the
game. Here, the rope experiences two forces
which are acting in opposite directions. To
understand the motion of the rope,





• net force is the difference between two forces.
• the net force acts in the direction of the larger
force.
• if two forces are acting in the same direction,
they add up.


The strength of a force is expressed by its
magnitude. Magnitude is a numerical value with an appropriate unit. In addition to the magnitude,
a force always has a direction. The direction of
force is away from us when we push something
and towards us when we pull something. Thus, a
force is expressed by its magnitude and direction.



We can now analyse the game of tug-of-war. The
two teams pull the rope in opposite directions.
Therefore, the direction in which the ribbon moves
will depend upon the net force acting on the rope.
The net force will point towards the team that
pulls the rope with a greater force. Therefore, the
ribbon will move towards the team that pulls the rope
with a greater force. If the two teams pull the rope
with the same force, the ribbon will not move.


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