Chap 39 SM
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Newtons first and third law of motion were used extensively in the study of statics (the bodies at rest) whereas Newtons second law of motion is used extensively.
Work In one dimension, work, a scalar, is defined for a constant force as Units of 1 N – m = 1 joule (J) A hiker does no work in supporting a backpack.
Chapter 4 The Laws of Motion 1. Force 2. Newtons Laws 3. Applications 4. Friction.