Determine the velocity (in m/s) of the object at 3.0 seconds. Include a numerical answer accurate to the first decimal place. If negative, include the - sign.

If you visited mount shasta city (elevation 900 m [3000 ft.]) and found the outside air temperature to be 27°c (81°f), what would be the air temperature at the summit of mount shasta (elevation 4200 m [14,000 ft.]) at that moment-assuming that the temperature conditions with altitude change at an average, or normal, lapse rate?