Your velocity relative to the other driver is , whereOriginally Posted by Dora
is your velocity, and is the other driver's velocity. So:
a) 90-120 = -30 km/hr
The other cars velocity with respect to you is , so:
b) 120-90 = 30 km/hr.
While you are traveling in a car on a straight, level inter-state highway at 90 km/h, another car passes you in the same direction; its speedometer reads 120 km/h. (a) What is your velocity relative to the other driver? (b) What is the other car's velocity relative to you?