Question

Edward runs with a speed of 3m/s. How long would it take him to run 2km? Give your answer in seconds to four significant figures.

Answer 1

`\huge\underbrace\mathrm\orange{ Answer}`

1 km = 1000 m

2 km = 2000 m

`time = (distance)/(speed)`

The distance is 2000 m and speed is 3 m/s

`time = (2000)/(3)`

`time = 666.666667`

So, 666.666667 seconds in four significant figures.

Answer 2

It will take 666.7 seconds for him to complete 2 km run.

Step-by-step explanation:

1 km → 1000 m

2 km → 2000 m

`\boxed {time =(distance)/(speed) }`

Here the distance is 2000 m and speed is 3 m/s

`\boxed {time = (2000)/(3) }`

`time = 666.666667`

`time = 666.7` seconds _____in four significant figures.