Sasha runs at a constant speed of 3.8 meters per second for 1/2 hour.Then she walks at a constant rate of 1.5 meters per second for 1/2 hour , 9,540 meters Sasha run and walk in 60 minutes
Given :
V1 = 3.8 m/s
t1 = 1/2 = 30 x 60 = 1,800 seconds.
Here,
V1 = Running speed of Shasha.
t1 = Time
→ She walks at distance V2 = 1.5 m/s for t1 = 1,800 seconds.
Distance of Shasha :
S1 = V1 x t1
S1 = 3.8 x 1,800
S1= 6,840 meters
→She walks at distance V2 = 1.5 m/s for t2 = 1,800 seconds.
Distance of Shasha:
S2 = V2 x t2
S2= 1.5x 1,800
S2= 2700 meters
Then, The total distance she runs & walks
S = S 1 + S 2
S= 6,840 + 2,700
S= 9540 meters
Therefore, 9,540 meters Sasha run and walk in 60 minutes
Learn more about Speed distance here : https://brainly.com/question/13723115