My Most Recent Video (2014.09.29)
An Introductory Relative Motion Problem (11:58)
Using a toy car and a piece of paper we can visualize and understand relative motion by doing an introductory problem.
0:13 Reading the problem
0:42 Translating the problem
1:38 Visualizing the problem
2:24 The vector diagram and equation
3:14 Isn’t this vector addition?
3:30 Solving for the velocity of the car with respect to the Earth
4:44 Solving for the direction of the car with respect to the Earth
6:32 Part (b) How far did the car travel?
7:15 New similar triangle with displacements
8:15 Solving part (b)
9:58 Solving part (c) How long did the car travel?
10:58 An alternate solution to part (c)
11:36 Yes, it did take about 15 seconds
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