Answer:
0.8 km/hr ⇔ 0.22 m/s
Explanation:
The formula for velocity is = distance/time
If velocity is to be calculated in kilometer per hour (km/hr)
The formula remains the same but the distance will be converted to kilometer (km) but the time remains in hour
Converting the distance to kilometers, we have
1 mile ⇒ 1.6 km
15 miles ⇒X km where X is the unknown
X = [tex]\frac{15 * 1.6}{1}[/tex] = 24 km
Velocity in km/hr = 24km/30 hr
Velocity = 0.8 km/hr
If velocity is to be calculated in meters per second (m/s). The formula remains the same also but the mile will be converted to meters and the time will be converted from hours to secs
Distance in meters will be
1 mile ⇒ 1609.34 meters
15 miles ⇒ X meters where X is the unknown
X =[tex]\frac{15 * 1609.34}{1}[/tex] = 24140.1 m
The time in seconds is
1 hr ⇒ 3600 secs
30 hrs ⇒ [tex]\frac{30 * 3600}{1}[/tex] = 108,000s
Velocity in m/s = 24140.1m/108000s = 0.22m/s
