Question

If a girl is pedaling her bicycle at a velocity of 0.10 km/h east, what is her speed in m/s?

1) 0.028 m/s
2) 0.10 m/s
3) 0.28 m/s
4) 2.8 m/s

Answer 1

To convert 0.10 km/h to m/s, multiply the distance in km by 1000 to get meters, and divide by 3600 to account for the time in seconds, resulting in a speed of 0.028 m/s.

Step-by-step explanation:

The question is asking to convert the velocity of a girl pedaling her bicycle from kilometers per hour to meters per second. The given velocity is 0.10 km/h, and we want to find the equivalent speed in m/s.

Firstly, it’s important to understand that 1 kilometer is equal to 1000 meters, and 1 hour is equal to 3600 seconds. Therefore, to convert the speed from km/h to m/s, we can follow this process:

• Convert the distance from kilometers to meters by multiplying by 1000.
• Convert the time from hours to seconds by multiplying by 3600.

To convert 0.10 km/h to m/s:

1. Distance conversion: 0.10 km * 1000 m/km = 100 m
2. Time conversion: 1 h * 3600 s/h = 3600 s
3. Speed in m/s: 100 m / 3600 s = 0.02778 m/s which we can round to 0.028 m/s.

Therefore, the girl's speed in m/s is 0.028 m/s.