A bird watcher meanders through the woods,walking 0.45 km dueeast, 0.65 km due s
ID: 1754519 • Letter: A
Question
A bird watcher meanders through the woods,walking 0.45 km dueeast, 0.65 km due south,and 2.45 km in adirection 45.0°north of west. The time required for thistrip is 3.00 h. (a) Determine the magnitude and direction (relative to due west) ofthe bird watcher's displacement. Use kilometers and hours fordistance and time, respectively. magnitude km direction °north of west(b) Determine the magnitude and direction (relative to due west) ofthe bird watcher's average velocity. magnitude km/hr direction °north of west
(a) Determine the magnitude and direction (relative to due west) ofthe bird watcher's displacement. Use kilometers and hours fordistance and time, respectively. magnitude km direction °north of west
(b) Determine the magnitude and direction (relative to due west) ofthe bird watcher's average velocity. magnitude km/hr direction °north of west
magnitude km direction °north of west
Explanation / Answer
A bird watcher meanders through the woods,walking 0.45 km dueeast, 0.65 km due south,and 2.45 km in adirection 45.0°north of west. The time required for thistrip is 3.00 h. (a)Determine the magnitude and direction (relative to due west) of thebird watcher's displacement. Use kilometers and hours for distanceand time, respectively. displacement the reultant of first two=0.452+0.652=0.7905km in a directionopposite to final one hence the displacement =2.45-0.7905=1.6595km direction =north of west magnitude km direction ° north of west (b) Determine the magnitude and direction (relative to due west) ofthe bird watcher's average velocity. average velocity=total displacement/totaltime=1.6595/3=0.5531km/h direction =north of west. magnitude km/hr direction ° north of west