Freebase(0.00 / 0 votes)Rate this definition: In a parliamentary or semi-presidential system of government, a reserve power is a power that may be exercised by the head of state without the approval of another branch of the government.
5k race = 3.1 miles. Most beginner runners will take an average time to finish a 5k race of 30 - 40 minutes. 10k race = 6.2 miles. The typical time it takes to do a 10k race is 1 - 1 1/2 hours. Half marathon = 13.1 miles, 21.7 kilometres. A respectable time it takes to do a half marathon is 2 - 2 1/2 hours. Marathon = 26.2 miles, 41.2 kilometres. The average time it takes runners to do a marathon is between 4 - 5 hours.
If you are a beginner runner, you may not know how long is a 5k will take while running. For the beginners, running a 5k has now become a popular goal to get desired position. It is actually a length of a race that with the little steady training nearly all runners can train up this speed at least within 6 to 8 weeks. In this term, k stands for kilometers and one kilometer is 0.62 mile. When it is a 5k race, a runner has to run 3.1 miles long, 5000 meters long, or 16368 feet long.