BPK 142 Lecture Notes - Lecture 8: Bronchus, Respiratory System, Bronchiole
6 Jul 2017
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Second law - law of acceleration - force equals mass x acceleration . Third law - law of reaction - when one body exerts a force on a second body, the second body exerts a reaction force that is equal in magnitude and opposite in direction on the first body. A mechanical quantity that is important in situations involving collisions. Momentum = mass x velocity: work and power relations. Units of work - 1. 0 nm = 1. 0 j (joule) Power = work per unit of time = fd t. Units of power = watts - 1. 0 w = 1. 0 j/s. Differences between walking and running: series of jumps. time walking. In running, there is no period when both feet are in contact with the ground at the same. In running there is a period when both feet are off the ground. In running, the stance phase is a much smaller portion of the total gait cycle than in.
