Respuesta :

mhanifa

Answer:

  • 18.33 m/s

Step-by-step explanation:

Average speed = distance/time

Distance is:

  • 15 m/s * 10 s + 25 m/s *5 s =
  • 150 m +  125 m =
  • 275 m

Time is

  • 10 s+ 5 s = 15 s

Av. speed

  • 275/15 = 18.33 m/s

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