Question

Help please

Charlotte is running at a rate of 9 km per hour.

What is Charlotte's speed in meters per second?

Answer 1

Charlotte's speed in meters per second is 2.5 meters per second.
What I did:
9 k per hour= (9/60)=per minute
9/60=0.15=15 m/m
0.15/60=0.025
0.025=2.5 m/s.

That is why Charlotte's speed in meters is 2.5 m/s.

Answer 2

v = 2.5 m/s

Explanation:

Given that,

Speed of Charlotte, v = 9 km/hr

Here, it is required to convert km/h to m/s. Firstly, we must see the following conversions as :

1 kilometer = 1000 meter

1 hour = 3600 seconds

Using the above expression as :

`v=9* (km)/(hr)=9* (1000\ m)/(3600\ s)`

v = 2.5 m/s

So, the speed of Charlotte is 2.5 m/s. Hence, this is the required solution.