a light year is the distance light will travel in a year which is a long long way light travels 186000 miles a second 300000 kilometers per second so a light second is 186000 miles 300000 kilometers
Best Answer: The ATP-PC system is use for around 10 seconds of an event, the ATP is use for 4-6 seconds before the creatine phosphate (CP) provides energy for a further 5 - 10 seconds. Weight lifting is the best example of a sport using the ATP-PC system.
3. Aerobic Energy System. In reality, most sports use a variety of energy systems, or at least the power (time to reach peak output) and the capacity (duration that peak output can be sustained) of the system.The only real exceptions are Olympic weight lifting and certain field events, such as hammer or shot put.naerobic A-Lactic (ATP-CP) Energy System. Athletes who compete in sports that require high amounts of short duration acceleration-shot-putters, weight lifters, American football linemen, gymnasts, or sprint-distance speed skaters use the anaerobic a-lactic system.