Amotor with cnstant speed rate at a highway and exit to
acircular ramp of radius 170m. he continue to decelerate at the
sameconstnt rate so that 10s after entering the ramp, his speed
hasdecreased to 32km/h, a speed which he maintains. knowing tht
atthis constant speed the total acceleration of automobile is
equalto one-quarter of its value prior to entering the ramp,
determinethe maximun value of the total acceleration of the
automobile.

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2