Acement factory emits 900 kilograms of co2 to produce 1,000 kilograms of cement. a fully grown tree removes six kilograms of co2 per day from the air. one acre of land can support 200 mature trees. a company builds a factory that will produce 100,000 kilograms of cement. to make the factory carbon neutral, the owners need to grow trees over an area of land measuring acres.

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?