startaye500
contestada

An athlete swims the length of 50m pool in 20sec, and
takes the return to the trip in 22 sec.
find the average veloity and speed
in the first half of the swim and in the second half of the swim.pls help me . I need to know the answer.!​

Respuesta :

Answer:

a) 2.5 meter per second

b) 2.27 meter per second

c) 2.38 meter per second

Explanation:

C1042

Answer:

average speed is 2.4m/s

1st half is 2.5m/s

2nd half is 2.3m/s

Explanation:

speed = distance/time

s = (50×2)/(20+22)

= 100/42

= 50/21

= 2.4m/s (1d.p)

1st half = 50/20

= 5/2

= 2.5m/s

2nd half = 50/22

= 2.3m/s

Otras preguntas