Q1. On a level driveway, a mechanic pushes a 2800 kg car from rest to a speed v, doing 6800 J of work in the process. During this time, the car moves 35m. Neglect sliding friction between the car and the road. What is the final speed, v, of car?

Q2. A 4.80 long, 600 steel beams extends horizontally from point where it has been bolted to the framework of a new building under construction. A 75 construction worker stands at the far end of beam.