Well, more useful than a what? I would assume you mean a car or train or something akin to that, so here is my answer. Planes are usually a lot faster than cars and most trains, so that is one thing. Another is that there is very rarely traffic in the skies like there is on a major highway at 4pm. However, planes are usually only faster for long term travels. For example, it would be faster in a car from Paris to Berlin than in a plane. Also, I would wager that planes probably are in a long term sense, more efficient that cars considering the plane takes more than one person. Overall, I think planes are better than cars, although only very wealthy people have personal jets and whatnot, so I would say cars for practical use, and planes for official and vacation use (through an airline company, or course).
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Absolutely!
No, the correct sentence should be: "The plane would be faster than the coach."
They are useful for takeoff to get lift and at landing for slowing down the plane.
Lesser the height of inclined plane, and more the length of it, More will be the mechanical advantage of inclined plane i.e less effort would be applied.
An inclined plane is useful for rolling something (such as a wheelchair) to a higher or lower level.
An inclined plane is useful for rolling something (such as a wheelchair) to a higher or lower level.
The comparative form of "useful" is "more useful."
Most useful and more useful.
more useful, the most useful
The most significant effect would be no more lunar eclipses, as they occur when the Moon's orbital plane intersects the ecliptic plane. Additionally, there would be a more regular pattern to solar eclipses, which currently occur when the Moon crosses the ecliptic plane at the right angle. It could also affect tidal patterns on Earth due to the altered gravitational forces.
A steep inclined plane is worse than a more flat inclined plane.