Answer:
t = 7.75 seconds
Step-by-step explanation:
Given that,
Speed of the car, s = 20 m/s
Distance covered by the car, d = 155 meters
Let t is the time taken by the person to go 155 meters. We can use to following equation of find t i.e.
![d=s* t](https://img.qammunity.org/2019/formulas/mathematics/college/p2xnnlrx7wpruld2q8ctqlaqjeb9ge32so.png)
![t=(d)/(s)](https://img.qammunity.org/2019/formulas/physics/high-school/hfpqfacixixse0svpbdack2rpylg550s3z.png)
Substituting all the values in above formula as:
![t=(155\ m)/(20\ m/s)](https://img.qammunity.org/2019/formulas/physics/middle-school/zvxcygv29urnxms3mmnwggskugfql4kpyr.png)
t = 7.75 seconds
So, the time taken by the car is 7.75 seconds. Hence, this is the required solution.