Chapter 6-Work + kinetic Energy. Conservation 0* Energy Work displacement (distana) Cannot be created or destroyed only Convereed from one energy to another (total energy remains the same) complete work on a particle equals the kinetic energy. L↳ displacement=how far out something is L↳ Ex). passengar moves to the back of a plane (change in position) → object nås been moved. or displaced magnitude → Magitude = distance or quantity 4 Ex). 1x1 + absolut relative direction or size that an object moves.. Work S displacement of magnitude 14 object Changes position in an absolute relative direction Fconstant force in same direction as dis placument F = F cos W= Fs (Straight line) (parallel to s) F₁=Fsin (perpendicular to s) Work & Kinetic Energy (2) AB JØ Oto 180 Scalar Product (dot produce) tail to tail imaginide times Component of B in the direction of Work as a Scalar produce Example #1a Chivens 210 NF 18m=5 $=30 Scalar product of Vectors F+S Physics WFs cos (210N) (18m) COS (30) Example #70 Givens 3.3 x 1035 Fx=160 N. 3x=4m. Fy=-ADN Sy=11m Physics AB=A,By Ay By + Az Ba Work + kinetic Energy y (160N) (14m) + (-4ON) Lilm) 1.8 x 10J Positive, Negative, or zero Or 0°-90° = positive direction (Samection 90°-180° = negative direction lopposite) direction 90°= zero (perpendicular)" Example #2 Givens-W T Physics T f=5000N T Ø=36.9° 8:20m all in cos (5000N) (20m) cos 36.90 80,000 W.m. .or. Givenswg. 3500N F 20 ms 0=180° or-1. 80k5 Physics (3500 W) (20m) COS180 -70k5 or-1

Chapter 6: Work + Kinetic Energy

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