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Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
Air in the upper atmosphere speeds up.
For a skateboard, friction works between the wheels of the board and the axis, as well as between the wheels of the board and the ground when the board is in motion. Since friction works in a direction opposing motion, it is only in effect when the when the board or the wheels of the board are in motion.
The wind at the surface of the ground where the molecules are having friction is moving slower than the wind above the surface.
Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
it will be slower near the surface
Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
Air in the upper atmosphere speeds up.
Because the water on the ground acts like an oil diminishing the grip. And when the ground is wet the water molecules resides between the ground and tires so, the tire is not in total contact with the ground.
For a skateboard, friction works between the wheels of the board and the axis, as well as between the wheels of the board and the ground when the board is in motion. Since friction works in a direction opposing motion, it is only in effect when the when the board or the wheels of the board are in motion.
Snow decreases the friction between your shoes and ground. That's why cars slide in the winter.
the friction and the motion of the ball both combined
Wind at the surface is slower than the "winds aloft" The biggest effect is within a few inches of the ground.
by increasing the roughness of the ground or increasing the sole of the shoes