All of the following are examples of velocity except
O
A. a bicyclist traveling 25 km/hr northwest
O
B. a northbound train moving at 60 km/h
O
C. a dog trotting at 2km/hr eastward toward
his master's home
O
D. a unicyclist riding 1km/hr on a tightrope
the circus

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above