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Un niño juega con un conejo en el parque, en un momento el conejo se aleja del niño en línea recta una distancia de 200 m en 15 s y luego regresa recorriendo dos tercios de la distancia en 10 s. Calcular: la velocidad media y rapidez media detodo elrecorrido.

User Dendog
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1 Answer

4 votes

Answer:

26.6m/s

Step-by-step explanation:

Speed = distance/time

When the distance = 200m

Time = 15s

Speed = 200/15

Speed = 13.33m/s

If it returns travelling 2/3rd of the distance, then the new distance will be:

2/3 × 200

New Distance = 400/3 m

Time taken = 10s

Speed during this period = 400/3 × 1/10

= 400/30

= 40/3

= 13.3m/s

Average speed during the entire trip = 13.3+13.3 = 26.6m/s