PHYS 101 Lecture Notes - Lecture 8: Angle Of View, Circular Motion

• School: Simon Fraser University
• Department: Physics
• Course: PHYS 101
• Professor: Andrew Debenedictis

Document Summary

Phys 101: physics for the life sciences lecture 8: kinematics v and. A boat whose speed in still water us 1. 70 m/s must cross a river of width 260 m. the boat wants to arrive at a position on the opposite shore 110 m upstream from where it started. In order to do this the sailor must head the point at a 45 upstream angle. V bw =v bwx +v bwy . V bw sin +v bw cos . V bs sin +v bs cos . X-equation: ( v bw sin ) = ( v bs sin ) + ( v ws. Y-equation: ( v bw cos ) = ( v bs cos ) + ( 0 ) V bs=v bw cos cos (substitute into the x-equation) ( v bw sin ) = ( v bs sin ) + ( v ws ( v bw sin ) = ( v bw.