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.
The 5K run is a long-distance road running competition over a distance of five kilometres (3.1069 miles).Also referred to as the 5K road race, 5 km, or simply 5K, it is the shortest of the most common road running distances.It is usually distinguished from the 5000 metres track running event by stating the distance in kilometres, rather than metres.he 5K run is a long-distance road running competition over a distance of five kilometres (3.1069 miles).