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.

26.6m/s

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

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.