At the instant 50degree the boy's center of mass g has a downward speed =8 ft/s. determine the rate of increase in his speed and the tension in each of the two supporting cords of the swing at this instant. the boy has a weight of 65 lb. neglect his size and the mass of the seat and cords. (hint) try to build the equations of motion for normal and tangential

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.