That meant his spiral became wider too, a full revolution taking longer so his downward velocity actually dropped.

For a mass initially above the ground the force of gravity causes a new downward velocity to build up.

As they lost orbital velocity and picked up downward velocity, their apparent speed began to increase.

The drag is proportional to the downward velocity of the object: when the object is at rest, there is no drag.

Therefore the larger downward velocity produces a larger aft-leaning component and this leads to larger induced drag on the aircraft with the smaller wingspan and lower aspect ratio.

Instead of the gravitational braking he should have felt, Sulu's senses told him that his downward velocity was still increasing, at the familiar and inevitable rate of 9.816 meters per second per second.

With the height advantage, the pitcher gains more leverage and can put more downward velocity on the ball, making it more difficult for the batter to strike the ball squarely with the bat.

Curving the front edges of his wings into his body, he turned his downward velocity upward, a slingshot effect of his own.

The downward reaction produces a downward velocity on the air, increasing its kinetic energy.

The channel itself helps keep the sound waves contained within the same depth, as the rays of sound that have an upward or downward velocity are pushed back towards the deep sound channel because of refraction.