Answer :
Answer:
20.35m per minute
Or
1,221.43 per hour
100/5=20
200/7= 28.57
50/4= 12.5
20+28.57+12.5= 61.07
61.07/3= 20.35m per minute
Or
20.35 x 60= 1,221.43m per hour
20.35m per minute
Or
1,221.43 per hour
100/5=20
200/7= 28.57
50/4= 12.5
20+28.57+12.5= 61.07
61.07/3= 20.35m per minute
Or
20.35 x 60= 1,221.43m per hour
The average speed of person is 21.87 m/s.
Given data:
The first 100 m distance is covered in 5 minutes.
Next, 200 m distance is covered in 7 minutes.
And finally, the distance of 50 m is covered in 4 minutes.
The average speed of any object is defined as the total distance covered by object in an entire journey divided by the total time taken to cover the journey. The mathematical expression for the average speed of person is,
[tex]v_{av.}=\dfrac{D_{total}}{t_{total}}\\\\\\v_{av.}=\dfrac{100 +200+50}{5+7+4}\\\\\\v_{av.}=21.87 \;\rm m/min[/tex]
Thus, we can conclude that the average speed of person is 21.87 m/min.
Learn more about the average speed here:
https://brainly.com/question/12322912