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| terminal speed together with the direction of motion, down for falling objects |
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| A diagram showing all the forces acting on an object |
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| The speed at whcih the acceleration of a falling object is zero because the force due to friction = weight (force due to mass) |
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| Friction or drag, acts on something moving through air or fluid |
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| Air resistance depends on three things, name them. |
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| Size of the object, speed of the object, density of the air or fluid. |
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| Do objects have weight in a vacuum? |
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| Yes, they have mass. Only air resistance is missing in a vacuum. |
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| Equation for Newton's Second Law |
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| Equation for inversely proportional |
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| a= ∑F/m: a is inversely proportional to the mass |
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| Equation for Proportional |
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| F=ma: Force is directly proportional to the mass. |
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