Answer:
Average speed = 1.3 m/s
Explanation:
Given that a student walks 160 m in 150 s. The student stops for 30 s and then walka 210 m farther in 140 s.
Neglect the time the student stops.
The total distance covered will be
Distance = 160 + 210
Distance = 370 m
The total time of the whole distance journey will be
Time = 150 + 140 = 290 s
The formula for speed is
Speed = distance/time
Speed = 370/290
Speed = 1.276 m/s
Therefore, the average speed is 1.3 m/s approximately
