g is Positive. (5:07)

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AP Physics 1

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We draw a free body diagram and sum the forces on an object in projectile motion to prove the acceleration due to gravity, g, is positive.

This is an AP Physics 1 and an AP Physics C: Mechanics topic.

Content Times:
0:00 Why students often think g is negative
1:48 Drawing the Free Body Diagram
2:54 Summing the forces
3:54 a ≠ g

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