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Published byLewis Cummings Modified over 9 years ago
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Galileo discovered that mass does not affect the time it takes for an object to fall to the ground. Objects fall at the same rate (on earth it is 9.8 m/s 2 ) https://www.youtube.com/watch?v=_m CC-68LyZM https://www.youtube.com/watch?v=_m CC-68LyZM
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Air Resistance : the force that opposes the motion of objects through air › Depends on size, shape, and speed
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Terminal Velocity : objects fall at constant velocity, force of gravity is balanced by air resistance What will a parachute do?
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Free fall : when gravity is pulling an object down and no other forces are acting on it all objects accelerate due to Gravity at a rate of 9.8 m/s 2
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Orbiting objects are in free fall Centripetal Force : unbalanced force that causes objects to move in a circular path › Two motions cause orbiting ( circular path ) Traveling around an object Falling
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Projectile Motion : the curved path that an object follows when thrown near the Earth’s surface due to gravity. › Frog Leaping › Sprinkler › Diver › Ball being thrown
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