An airliner passes over an airport at noon traveling 500 mi divided by hr due east. at 1 : 00 p. m., another airliner passes over the same airport at the same elevation traveling due south at 580 mi divided by hr. assuming both airliners maintain their (equal) elevations, how fast is the distance between them changing at 2 : 30 p. m.?

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .