Respuesta :

Stephen46

Answer:

20.83 m/s

Explanation:

The speed of an object can be found by using the formula

[tex]v = \frac{d}{t} \\ [/tex]

d is the distance

t is the time taken

From the question

600 km = 600,000 m

8hrs = 28,800 s

We have

[tex]v = \frac{600000}{28800} = \frac{6000}{288} = \frac{125}{6} \\ = 20.83333...[/tex]

We have the final answer as

20.83 m/s

Hope this helps you

blubs6103

Answer:

20.833333... m/s  or   20 & 5/6 m/s

Explanation:

You want to convert km to meters, and hours to seconds. You do "dimensional analysis," which is just multiplying fractions so that units cancel.[tex]\frac{600 km}{8hr} * \frac{1hr}{60mins} * \frac{1min}{60sec} = \frac{600km}{28,800sec} = \frac{6km}{288sec}[/tex]

so now we have km/sec, but we need m/s, so...

[tex]\frac{6km}{288sec} * \frac{1000m}{1km} = \frac{6000m}{288sec} = \frac{125m}{6sec} = 20\frac{5}{6} m/s = 20.83333... m/s[/tex]

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