PHYSICS 3A Chapter Notes - Chapter 3: Ton-Force, Exponential Decay

• School: UC-Irvine
• Department: Physics
• Course: PHYSICS 3A
• Professor: Thorsten Ritz

Document Summary

Uniform motion : motion along a straight line at a constant speed (cid:8869) " constant velocity " Position graph is straight line (cid:8869) " an object "s motion is uniform hand only if its position graph is a straight line (cid:8869) (cid:8869) (cid:8869) Horizontal line on position graph: independent of direction. Bob leaves home in chicago at 9:00 am and drives east at 60 mph. Pittsburg, leaves at the same time and travels west at 40 mph. Given ( 1) b--0mi (vox)b=60mph (vx)g= -40 mph t , Wanted ( f) b tf ( ftp://b-lvx/b(tf-x-i)--lvx)btt ( f)s=( , )s+(vx)s(tf - t, ) :( , )s+(vxlstf ( f)b=( f) s. 60 mph - (-40 mph ) ( f) b=(vx)btf=(60mi/h)(4. Instantaneous velocity : velocity at a single instant of time (cid:8869) rate of change of position (cid:8869) derivative of position with respect to time (cid:8869) (cid:8869) (cid:8869) Given : position of as function of time. A little calculus: derivatives (cid:8869) (cid:8869) c-_ constant.