IMG_0001_NEW_0015 - on the first body" Momenfum t;4,i A mechanical quantity that is important Momenfum mass X velocity V Work and Power

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a 4. 5. {ertically positioning the - ffi##M as possible lgt"lgp between the body and the surface contacted IV. Newton's Laws of Motion First Law - Law of Inertia - "A body will maintain a state of rest or constant velocity unless acted on by an extemal force that changes the state." The amount of inertia a body possesses is directly proportional to its mass. 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
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Unformatted text preview: on the first body." Momenfum t' -;4',i A mechanical quantity that is important Momenfum: mass X velocity:, V. Work and Power Relations Work: force X distance Units of work - 1.0 Nm: 1.0 J fioule) Power: work per unit of time : Fd+At, in situations involving collisions. : force X velocity Units of power: watts - 1.0 W: 1.0 J/s. VI. Walkins Versus Running Differences between walking and running: I . In qffiib there is a period when both feet are off the ground. Consider running as a *-4 senes oI.lumps. oncoming external...
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This note was uploaded on 12/29/2011 for the course KIN 142 taught by Professor Asmundson during the Fall '09 term at Simon Fraser.

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