Askydiver jumps out of a hovering helicopter, so there is no forward velocity.

just as the skydiver steps out of the helicopter, someone who’s watching starts a stopwatch. so the time is zero as the skydiver steps out of the plane. what is the skydiver’s downward velocity at that instant, just before starting to fall?

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation