If the 250lb block is released from rest when the spring is unstreiched, determine the velocity of the block after it has descended 5 ft. the drum has a weight of 50lb and a radius of gyration of ko=0.5 ft about its center of mass o .solve using newton's second law.

10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.