Rating Newest Oldest. Best Answer: In physics terms, horsepower is used to measure the amount of work done. Work done is the mathematical expression of force x distance x time and is typically in ft/lbs/mins (Imperial) or Newton/Meters/mins (Metric). Horsepower was first coined by James Watt to measure the output of his new steam engines.
Okay the average age for a gymnast in the olympics is around 15-16 years old and most gymnasts retire at the age of 20, cause its an extremely tough sport to compete with younger gymnasts.
Add your answer. How old do you have to be to join the gym? Im 14 and work out at my school - I have a awesome body and have been approached by A&F but my schools work out room has no where near the amount of equipment I need. Would I be able to join a gym with parent consent. Id also be going by myself - so my parents couldn't supervise my work out.