Question

what is the resultant of combining 25 mph east and 55 mph west? 30 mph west 30 mph east 80 mph east 80 mph west

Explanation:

Step1: Define directions as vectors

Let east - direction be positive and west - direction be negative. So the 25 mph east is + 25 mph and 55 mph west is - 55 mph.

Step2: Calculate the resultant

Add the two velocities: $25+( - 55)=25 - 55=-30$ mph.

Answer:

A. 30 mph West