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# Ps ch 3

### Vocab

TermDefinition
Newton's second law of motion states that the acceleration of an object is in the same direction as the net force on the object
friction the force that opposed the sliding motion of two surfaces that are touching each other
static friction the frictional force that prevents two surfaces from sliding past each other
sliding friction the force that opposes the motion of two surfaces sliding past each other
air resistance opposed the motion of objects that move through the air
gravity is an attractive force between any two objects depends on the masses of the objects and the distance between them
weight gravitational force exerted on an object
centripetal acceleration acceleration toward the center of a curved or circular path
centripetal force net force exerted toward the center of a curved path
Newton's third law of motion describes action-reaction pairs this way:"to every action force there is an equal and opposite reaction force"
momentum property o fa moving object that equals its mass times its velocity
Created by: merariramos1