Aboat, which has a speed of 5 km / h in still water, crosses a river of width 1 km along the shortest possible path in 15 minutes. What is the magnitude of velocity of the river water? A. 5 km / hB. 3 km / hC. 6 km / hD. 4 km / h Step3: Cool Down. Bring your heart rate back down with five minutes of easy pedaling. Advertisement. This 20-minute stationary bike workout is all about speed. You'll alternate between sprinting and recovery intervals for a quick at-home indoor cycling routine. Acyclist who is riding on flat terrain using a road bike could be able to cover a 20 km distance in around 60 minutes if they were able to maintain an average speed of 16-20km/h (10-12 mp/h). However, it is likely your average speed will decrease to around 10-14km/h. Solution Step 1: The formula for distance is. Distance = Rate × Time. Total distance = 50 × 3 + 60 × 2 = 270. Step 2: Total time = 3 + 2 = 5. Step 3: Using the formula: Answer: The average speed is 54 miles per hour. Be careful! You will get the wrong answer if you add the two speeds and divide the answer by two. Pleaseenter the speed and distance values to calculate the travel time in hours, minutes and seconds. Speed Kilometer per hour (km/h) Kilometer per minute (km/min) Mile Sub28 Minute 5KM Pace and Speed: 28 minutes : 5 minutes 36 seconds : 9 minutes : 5km: 10.7kmh : 6.6mph : Sub 29 Minute 5KM Pace and Speed: 29 minutes : 5 minutes Thesub 20 minute 5k training plan includes speed work, tempo runs, and easy mileage to build endurance and increase your pace. The 5k race is a distance of 5 kilometers or 3.1 miles. The sub 20 minute 5k is a popular time goal for runners, but is it a good result? Explosive-strength training improves 5-km running time by improving Dont worry about your speed on the first 5K. Now is the time to work on your running form, get used to running without stopping, and build strong habits that will help your running future. How To Run 5k in 20 Minutes (fast!) How To Run 5k in 18 Minutes. Going on to a half marathon will be a life-changing experience you shouldn’t miss. jVZpViQ.