Question

4.5 km hr⁻¹is the equivalent to

A) 1.25 m s⁻¹
B) 1.50 m s⁻¹
C) 2.00 m s⁻¹
D) 2.50 m s⁻¹

Answer 1

To convert 4.5 km/h to m/s, one needs to perform the conversion 4.5 km/h × (1,000 m / 1 km) × (1 h / 3,600 s), which results in 1.25 m/s, making option A the correct answer.

Step-by-step explanation:

The task at hand is to convert a speed from kilometers per hour (km/h) to meters per second (m/s). This involves recognizing that 1 kilometer is equivalent to 1,000 meters, and 1 hour is equivalent to 3,600 seconds. Therefore, to convert from km/h to m/s, one divides the speed value by 3.6.

Starting with the given speed of 4.5 km/h, the conversion to m/s is as follows:

4.5 km/h × (1,000 m / 1 km) × (1 h / 3,600 s) = 4.5 × (1,000 / 3,600) m/s

After the mathematical calculation, the result is:

4.5 km/h = 1.25 m/s

So, option A is the correct equivalent speed of 4.5 km/h in meters per second.