Researchers doing satellite tracking of albatrosses in the Southern Ocean observe a bird maintaining sustained flight speeds of 35 m/s- nearly 80 mph!!  This seems surprisingly fast until you realize that the particular bird was flying with the wind, which was moving 23 m/s. What is the bird’s airspeed- its speed relative to the air?

I'm attempting to calculate acceleration for the following: A plane lands on a runway with a speed of 120 m/s, moving east, and it slows to a stop in 12.0 s. What is the magnitude and direction of the plane's average acceleration during this time interval? So far I've gotten to this point: (0m/s - 120m/s)= (-120m/s)= stuck here.. the answer must be in m/s2 (12s - 0s)               (12s)

While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off of the shelf that is 3.68 meters high. Neglecting air resistance and assuming the book has an initial velocity of 0 m/s, what speed will the book have right before it hits the ground?

A swimmer took a running leap off a high-diving platform.  The swimmer was running at 2.8 m/s and hit the water 2.6 seconds later.  a) How high was the platform, and b) how far from the edge of the platform did the swimmer hit the water? Ignore wind resistance.

Einstein throws a rock downward with a speed of 15 m/s from the top of a 31-m tower. If the value of acceleration due to gravity, g, is 9.8 m/s2 and air resistance is negligible, what is the speed of the rock just as it hits the ground?

In a classic clip on Americas Funniest Home Videos, a sleeping cat rolls gently off the top of a warm TV set. Ignoring air resistance, calculate the position and velocity of the cat after (a) 0.100 s, (b) 0.200 s, and (c) 0.300 s.

In World War II, there were several reported cases of airmen who jumped from their flaming airplanes with no parachute to escape certain death. Some fell about 20,000 feet (6000 m), and some of them survived, with few life- threatening injuries. For these lucky pilots, the tree branches and snow drifts on the ground allowed their deceleration to be relatively small. If we assume that a pilot's speed upon impact was 123 mph (54 m/s), then what was his deceleration?  Assume that the trees and snow stopped him over a distance of 3.0 m.

In 1948 United States Air Force pilot Gail halvorsen became known as the Berlin Candy Bomber when he began dropping candy bars and Bubblegum to the children of Berlin. If he was flying with a forward velocity of 100 meters per second at a low altitude of 1000 m how far from the Berlin Wall would he have to release the candy so that it would land in the city?

If an egg is dropped from rest and takes 0.8 seconds to hit the ground, what is the height, in meters, that it was dropped from (neglecting air resistance)? Use h=(1/2)gt^2.  , where g = 9.8 m/s^2 (you can round to 10 m/s).  Just provide a number in your answer, not units.

Could someone please explain? Thank you.