The application of Newtonâ€™s Second Law is when you really understand what the net force equals mass times acceleration where both force and acceleration are vectors really means. Therefore, we introduce Newtonâ€™s Second Law and then do an example problem.
0:11 Defining Newtonâ€™s Second Law
1:00 The example problem
1:51 Drawing the Free Body Diagram
2:48 The Force of Gravity
3:42 The net force in the y-direction
5:28 The acceleration of the book in the y-direction
6:38 The net force in the x-direction
7:59 Solving for the dimensions of acceleration
8:54 Constant net force means constant acceleration
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