Question

If a force of 10 N along+x direction is acting on a object. What other force can be used to balance this force?

Answer 1

Answer:

A frictional force of 10N on the opposite direction can be used to balance the given force.

Explanation:

The net force is the sum of all forces acting on the object in different directions (x,y):

$\sum F_{r} = ma$  (1)    

   

Where $\sum F_{r}$ represents the net force, m is the mass and a is the acceleration.

$F_{x} + F{y} = ma$  (2)

$F_{x}$ is the sum of the forces that are in the x direction, for this particular case $F_{x}$ has to be equal to zero to be balanced.

$F_{x} = 10N - 10N$

$F_{x} = 0$

So a force with the same magnitude but opposite direction is needed (-x).

Hence, a frictional force of 10N in the opposite direction can be used to balance the given force.