If a car is going 90 km/h, what is the equivalent in meters per second?

To convert the speed of a car from kilometers per hour (km/h) to meters per second (m/s), you can use the conversion factor that 1 km is equal to 1000 meters and 1 hour is equal to 3600 seconds.

First, start by using the conversion from kilometers to meters:

1 km = 1000 m

So, if the car is traveling at 90 km/h, in meters per second it is calculated as:

[

90 \text{ km/h} = 90 \times \frac{1000 \text{ m}}{1 \text{ km}} = 90000 \text{ m/h}

]

Next, convert hours to seconds since there are 3600 seconds in one hour:

[

90000 \text{ m/h} \div 3600 \text{ s/h} = \frac{90000}{3600} \text{ m/s}

]

Calculating this gives:

[

\frac{90000}{3600} = 25 \text{ m/s}

]

The proper conversion reveals that 90 km/h is equivalent to 25 m/s, making the correct answer that corresponds to this calculation. Hence, it