contestada

A migrating bird flew across a lake at an average speed of 18 meters per second. Was the distance that the bird flew across the lake less than 21 kilometers

Respuesta :

Answer:Yes

Explanation:

Given

Average speed of migrating bird is [tex]v_{avg}=18 m/s[/tex]

18 m/s can be written as 64.8 km/h

i.e. on average bird can flew a distance of 64.8 km in 1 hour

if we set the time frame of 1 hour then average distance is 64.8 km , which is greater than 21 km

Thus we can say that if average speed of bird is 18 m/s then it can travel a distance of 21 km in 1 hour