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what is a force
push or pulls on a object due to interaction with another object
contact force
the objects are physically touching
vector
hAS A MAGNITUE AND DIRECTION use arrow to represent them
scalar
only has a magnitude
when do contact forces occur
when two or more objects are touching each other
non contact force and example
the objects are physically separated eg gravitational force and magnetic force
non contact force what does it do
forces that act on object without physically coming into contact without each other