At the speed of 2.5 m/s, how many seconds will it take the kayak to run a 4,500 m course? What is the speed of the kayak inn kilometer per hour? I want to work it on my own, just need help with formula please thanks
To calculate the time it takes for the kayak to run a 4,500 m course at a speed of 2.5 m/s, you can use the formula:
time = distance / speed
In this case, the distance is 4,500 m and the speed is 2.5 m/s.
So, the time taken by the kayak to complete the course can be calculated as:
time = 4,500 m / 2.5 m/s
To find the speed of the kayak in kilometers per hour (km/h), you can use the conversion factor:
1 km = 1,000 m
1 hour = 3,600 seconds
First, let's calculate the time in seconds:
time = 4,500 m / 2.5 m/s
time = 1,800 seconds
Next, convert the distance from meters to kilometers:
distance in km = 4,500 m / 1,000 m/km
distance in km = 4.5 km
Now, convert the time from seconds to hours:
time in hours = 1,800 seconds / 3,600 seconds/hour
time in hours = 0.5 hour
Finally, calculate the speed in km/h by dividing the distance (in kilometers) by the time (in hours):
speed = distance in km / time in hours
speed = 4.5 km / 0.5 hour
speed = 9 km/h
Therefore, the kayak will take 1,800 seconds (or 0.5 hour) to complete a 4,500 m course, and its speed is 9 km/h.