2. A bicyclist leaves her home to run an errand. She heads east for 1.2 km then turns north for 0.8 km. At this point, she turns east again for 0.4 km before heading south for 0.2 km.
Use graphical techniques to determine the resultant displacement during this errand.
(Scale: 1km = 10 cm)

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative