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Several reasons. The main reason being the friction created by the gravitation force acting on the board and pushing the wheels to the ground. Also the air resistance as the board is moving forward. Thirdly, the surface in which the skateboard is riding on would need to be perfectly smooth, theoretically on air, to create no resistance. And finally the rotation of the wheels against the bearings creates friction which even though they are greased to reduce the friction can not completely eliminate this factor.
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Is a cube aerodynamic?
No, a cube is not aerodynamic. A cube has a flat face, so it will produce more drag. It will also take more energy to push forward because the flat face of the cube is trying to push the wind as you are pushing the cube.
What type of a simple machine is a push pin?
A push pin is a fastener. As a minimum, it fastens a very visible head to a surface. Even used symbolically on e.g. Google maps. Alternately it may fasten one surface (paper) to another.
Why some foam cubes get smaller in a syringe and some stay the same size?
Becausse ghe gas hass not a lot of pressure so it will push the cubes flat but the syringe isnt strong enogh to keepp them all flat
How do you calculate the volume of a nut?
One method would be with water displacement. Fill a graduated cylinder with a known amount of water. Drop in the nut. Push below surface with wire, or something with negligible volume. Read volume, and subtract.
What is the meaning of pull push rule?
Pull here push there rule men! :D
What makes a skateboard fast or slow?
the friction between the wheels and the surface of the ground affect the speed of the skateboard. fo instance if you ride the skateboard on a smooth surface (with less friction) the skateboard will go faster.
Will a manual car in neutral roll on a flat surface?
Only if you push it. On a perfectly flat surface, in neutral it will not roll without assistance.
What motions occur on a skateboard?
Kick, Push
If you stand on a skateboard and push off the ground with one of your feet the reason that the skateboard moves forward is that the force you apply to the skateboard equals what?
friction
How many people are required to push a 4000 lb vehicle on a flat surface?
60 people with anthropedimetric alkorotovetics can do it.
What is the differercne between folding and faulting?
A fault causes a crack due to one tectonic plate overlapping another like if you place 2 piles of books on a flat surface and push them together., A fold is like a bend, like if you place 2 towels on a flat surface and push them together.
What is the difference between thumbtack and push pin?
a thumb tack has a flat circle top while a push pin has the tower like top.
With what speed will a skateboard move?
The speed of a skateboard depends on various factors such as the force applied by the rider, the terrain, and the bearings of the skateboard wheels. On a flat surface with a typical push, a skateboard can reach speeds of around 5-10 miles per hour.
How does a thumbtack work?
A thumbtack works by pressing the sharp end into a surface to secure papers or other items in place. The flat end of the tack provides a surface for pressing with your thumb or a similar tool to push it into the material.
If you ride a skateboard with your right foot in back and push of with your left is this normal and what is it called?
that is regular
How can a skateboard do what it does?
This is a mighty vague question, but I'll give it a shoot. A skateboard has wheels - when these wheels are acted upon by a force (such as you pushing it), they proceed to take the energy from that force and change it into centrifugal and centripetal forces- this causes the wheels on your skateboard to turn. Your skateboard won't roll indefinitely from 1 push because while your skateboard is rolling it is creating friction with the sidewalk you're skateboarding on. Friction is caused when 2 objects rub up against each other - this creates heat and a transfer of kinetic energy. Once all the kinetic energy has been transferred from your skateboard's wheels to the sidewalk, your skateboard come to a stop.
Will a skateboard go faster if you push it with the same force for a longer time?
Yes. The force is measured as "acceleration" and is meters per second per second (or velocity per second) or the first derivative of velocity. On a frictionless surface in an environment without air resistance, and if the skateboard is a frictionless mechanism, if the skateboard is moving at a constant velocity, that means the acceleration is zero, which means that there is no force being applied to it and it is a body in motion staying in motion.
