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In circular motion,a force that acts perpendicular to the direction of motion,toward the center of the curve

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Any motion in which an object is moving along a curved path

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The acceleration of an object is equal to the net force acting on the object divided by the object's mass

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Friction - A force that resists the motion of two surface that are touching

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Friction - A force that resists the motion of two surface that are touching

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Weight - The gravitational force exerted on an object 

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Weight - The gravitational force exerted on an object 

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Mass - the amount of matter in an object

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Mass - the amount of matter in an object

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Gravity - An attractive force that exists between all objects that have mass

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Gravity - An attractive force that exists between all objects that have mass

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Noncontact force - A force that one object can apply to another object without touching it

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Noncontact force - A force that one object can apply to another object without touching it

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Contact force - A push or pull on one object by another that is touching 

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Contact force - A push or pull on one object by another that is touching 