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Section 2.3 Falling Objects

Section 2.3 Falling Objects. Physics A. Learning Objectives. I can relate the motion of a freely falling body to motion with constant acceleration. I can calculate displacement, velocity, and time at various points in the motion of a freely falling object.

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Section 2.3 Falling Objects

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  1. Section 2.3Falling Objects Physics A

  2. Learning Objectives • I can relate the motion of a freely falling body to motion with constant acceleration. • I can calculate displacement, velocity, and time at various points in the motion of a freely falling object. • I can compare the motions of different objects in free fall.

  3. Free Fall • Definition: the motion of a body when only the force due to gravity is acting on the body.

  4. Acceleration due to Gravity ag= -g = 9.8 m/s2

  5. (A) (B)

  6. Q. If the initial velocity of the ball is 10.5 m/s when leaving the person’s hand from an initial height of 1.5 m, what is the velocity of the ball when it passes that same point going down?

  7. Based on what you know about interpreting graphs, describe a scenario this graph would model.

  8. -a +v -a v=0 -a -v

  9. Example • You hit a baseball so it has an initial velocity of 6.0 m/s straight upward. If the ball is originally 2.0 m above the ground, how long will it be in the air before it strikes the ground? (assume resistance due to air is negligible).

  10. Practice F: pg. 74 1-4

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