On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earthâs mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earthâs surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second. Thus, for every second an object is in free fall, its speed increases by about 9.8 metres per second. At the surface of the Moon the acceleration of a freely falling body is about 1.6 metres per second per second.
Physicians and physiologists have warmed to the idea of water walking as therapy and good exercise for people with joint pain and damage for its many benefits, which include: 1  Waterâs buoyancy reduces the impact on joints.  Working out in water can help improve cardiovascular fitness, balance and range of motion.
1 An average fitness walking pace is close to a 15 minute mile. 2  But, a good pace will vary depending on your fitness level, walking technique, walking goals, and terrain.3  For general fitness walking you should walk at a pace that increases your heart rate, and you can maintain for 30 to 60 minutes. 4  Use the talk test... An average fitness walking pace is close to a 15 minute mile. 2  But, a good pace will vary depending on your fitness level, walking technique, walking goals, and terrain.