To find:
How does the decrease in friction affect the amount of force needed?
Step-by-step explanation:
Friction is a force that acts between two surfaces that are in contact with each other. Friction is the force that opposes the motion of an object. Thus the frictional force is always in the direction opposite to the direction of motion of an object.
The net force is the sum of all the forces that act on the object. When there is friction acting on a body, the applied force must overcome friction in order for the body to move. Thus when the friction is high the magnitude of the applied force must be high. Therefore when the resistance caused by the friction decreases the amount of the force needed for the object also decreases.
Final answer:
Therefore when the resistance caused by the friction decreases the amount of the force needed for the object also decreases.