aqua running"" is a form of cardiovascular conditioning that involves running in water. an aqua runner with a mass of 80 kg and weight of 784 n is exactly 50 percent submerged in water. what is the apparent weight of the runner? assume the density of both the water and the runner is 1.0 g/cm3. a. 157 n b. 196 n c. 261 n d. 392 n