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Freefall!. What is freefall?. Freely falling objects are effected by gravity alone. No air resistance No other forces Objects that are dropped small distances mimic free fall. Objects in freefall accelerate Gravity accelerates all objects at the same rate in absence of air resistance
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What is freefall? • Freely falling objects are effected by gravity alone. • No air resistance • No other forces • Objects that are dropped small distances mimic free fall. • Objects in freefall accelerate • Gravity acceleratesall objects at the same rate in absence of air resistance • acceleration due to gravity g = 9.80m/s2
Freefall: How Fast • Objects would continue to accelerate at 9.80m/s2 if there was no air resistance. • This means for every second in freefall the objects velocity increases by about 9.80 m/s. • Fill in the chart • Using the eq to Determine how fast. • Terminal Velocity- the maximum velocity an object can reach while falling due to air resistance.
Throwing an object upward is freefall too! • On the way up, the velocity of an object decreases at a rate of 9.80 m/s2. • At the top of the arc the objects velocity is zero but the object still has an acceleration of 9.80 m/s2 • On the way down, the velocity of the object increases at a rate of 9.8 m/s2
Freefall: how far • As an object falls, it covers a greater amount of distance each second it falls! • How far: