Answer:
Va = 3.77 [m/s]
Explanation:
We know that speed is defined as the relationship between the distance traveled in a given time.
v = L/t
where:
v = speed [m/s]
L = distance = 1000 [m]
t = time = 3 [min] = 180 [s]
Therefore the first speed is:
v = 1000/180
v = 5.55 [m/s]
Now the second velocity:
t = 5 [min] = 300 [s]
v = 600/300
v = 2 [m/s]
The average speed is calculated by the sum of both speeds divided by two.
Va = (5.55 + 2) /2
Va = 3.77 [m/s]
