An automobile traveling on a straight, level road has an initial speed v when the brakes are applied. in coming to rest with a constant acceleration, it travels a distance x. how far would the automobile travel in coming to rest if it had the same acceleration but an initial speed 2v ?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.