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Unformatted text preview: August 23 August 23 Physics In: In: How long would it take a rock, dropped from a height of 200m to hit the ground? (acceleration of gravity=­9.8) Objective: Objective: – Begin to understand free fall Success criteria – Be able to solve freefall problems with v1=0 Homework check Homework check Freefall: Freefall: An object is in freefall if the only force acting on it is the force of gravity. Up is positive, down is negative. Gravity acts the same on the way up as the way down. Freefall is a...
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