Regression equations estimating body segment weights are below:
Trunk weight = 0.532*BW-6.93, Shank weight = 0.044*BW-1.75. BW is total body weight. If John’s body mass is 175 lbs, calculate (1) his trunk weight and shank weight (unit: N) using the two regression equations above, and (2) his trunk mass and shank mass (unit: lbs).