Answer:16 m/s
Step-by-step explanation:
Given
Car trip to north for three-fourth of the time
and due to south one-fourth of time
Average northwards velocity is 35 m/s
Average southwards velocity is 41 m/s
Suppose car has moved first in north direction for
time with 35 m/s
Distance traveled

Now car starts moving in south thus
Distance traveled

Therefore net displacement is

therefore average velocity

