a dog runs at a speed of 4m/s how many minutes does It take the dog to go 1 km?
1 km * 1000 m/km * 1 s/4 m * 1 min/60 s
= 250/60 = 25/6 minutes
To find out how many minutes it takes for the dog to run 1 km, we need to convert the given speed from meters per second to kilometers per minute. Here's how you can do it:
Step 1: Convert 1 km to meters
1 km = 1000 meters
Step 2: Calculate the time in minutes
Speed = Distance / Time
Rearranging the formula:
Time = Distance / Speed
Substituting the values:
Time = 1000 meters / 4 m/s
Step 3: Convert seconds to minutes
Since the speed is given in meters per second, we need to convert the time from seconds to minutes.
There are 60 seconds in a minute, so we divide the time by 60.
Time in minutes = Time in seconds / 60
Substituting the value:
Time in minutes = (1000 meters / 4 m/s) / 60
Simplifying:
Time in minutes = 1000 / (4 * 60)
Now we can calculate the answer:
Time in minutes = 1000 / 240
Time in minutes = 4.167 minutes (rounded to three decimal places)
Therefore, it takes approximately 4.167 minutes for the dog to run 1 km.