5. A 450!) kg helicopter accelerates upward at 2.0 mils? What lift force is exerted by the air on the propellers? Make sure you draw a FBD and write Fnet = ma to begin this solution. i". What is the normal force supporting a 12E") kg car with a ?5 kg person sitting in it and a 50kg bike rack on its roof? Start with an FBD and Fnet =ma. B. What is the normal force supporting a 120:) kg carwhen a crane above it is pulling up on the car with a force of EDEN? Start with an FBD and Fnet =ma. Q. What is the normal force supporting a 90:] kg car in a mechanic's garage on a lift when the lift is accelerating the car up at an acceleration of 1.6 mfsz? Start with an F30 and Fnet =ma. 10. What is the normal force supporting a 90:] kg car in a mechanic's garage on a lift when the lift is letting the car back down by accelerating the car downwards at an acceleration of 1.2 mlsg? Start with an FBD and Fnet =ma