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Video Discussion: Introduction to Free-Fall and the Acceleration due to Gravity

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Name: Introduction to Free-Fall and the Acceleration due to Gravity

Category: Kinematics

Date Added: 21 May 2014 - 03:52 PM

Submitter: Flipping Physics

Short Description: None Provided

In this lesson we extend our knowledge of Uniformly Accelerated Motion to include freely falling objects. We talk about what Free-Fall means, how to work with it and how to identify and object in Free-Fall. Today I get to introduce so many of my favorites: the medicine ball, the vacuum that you can breathe and, of course, little g.

Content Times:

0:22 An Example of An Object in Free-Fall

0:54 Textbook definition of a freely falling object

1:11 We have not defined a "Force" so this is how we define Free-Fall

2:07 No Air Resistance (The Vacuum that You Can Breathe!)

3:10 What does it mean to be in Free-Fall? (The Acceleration due to Gravity)

4:41 The Acceleration due to Gravity - Not on Earth

5:24 g is not constant on Earth. Very close, but not quite

5:56 Common Misconception: Objects moving upward can be freely falling

6:35 Free-Fall is Uniformly Accelerated Motion

7:27 What does the negative mean in -9.81 m/s^2?

7:57 Is "g" positive or negative?

9:01 How can "g" be not constant and we can use UAM?

10:03 Does mass effect the acceleration due to gravity?

10:47 The Review

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