The Motion of Vehicles in Water
Published by The smooth sides and rounded outline of the shape do not disturb the flow of water and do not cause turbulence behind the object. Turbulence causes drag in a vehicle. The hulls of vehicles that are immersed in water are streamlined so that the vehicles can sail faster through the water. The center of gravity of the vehicles in water must be below the water level so that the vehicle is stable and balanced when moving on water..
or: http://u.nu/2bqz
Principle of Operation of Vehicles in Water
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Vehicles in water are moved by a) energy from humans such as boats b) wind energy such as boats c) energy from the engine such as ships, hydrofoils and hovercrafts.
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Boats a) boats are moved with oars b) when water is pushed backwards by oars in a boat, a backward momentum is produced c) a forward momentum of equal magnitude to the backward momentum is produced, thus moving the boat forwards.
or: http://u.nu/8bqz
Sailing boats/ yachts a) sailing boats and yachts move by using wind power. These boats have one or more sails with large surface areas b) when the wind blows, the movement of the wind is blocked by the sails. The momentum of the wind is transferred to the sails, causing the boat to move forward.
or: http://u.nu/4cqz
Ships a) large ships use diesel engines or nuclear energy to move their propellers located at the end of the ship b) large amounts of water is pushed backwards very quickly by the propellers, creating a large backward momentum c) a forward momentum that is of equal magnitude to the backward momentum is produced, causing the ship to move forward.
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On August 23, 2009 at 7:12 am
Excellent article dude! You’ve done it again! Have my liked it.
On August 23, 2009 at 7:35 am
Wow! Vert interesting! Like it!
On August 23, 2009 at 7:37 am
Interesting! I like this
On August 23, 2009 at 7:50 am
This is another excellent teaching aid. Well done.
Christine
On August 23, 2009 at 9:32 am
Quite interesting!
On August 23, 2009 at 9:46 am
very interesting enjoyed very much!!
On August 23, 2009 at 11:04 am
Well done interesting article. Another good job for you.
On August 23, 2009 at 11:27 am
Very interesting, mrghaz. I’ve learned so much from your articles. Your an excellent writer.
Thanks.
On August 23, 2009 at 11:30 am
Mr Ghaz, you have explained a lot, It’s hard for me to understand how a huge ship can sail on top of he water instead of sinking straight to the bottom. I understand much better now.
On August 23, 2009 at 11:31 am
Excellent and informative article – I learned a lot as always.
On August 23, 2009 at 11:53 am
Well composed and lots of info.Nicely presented post.TX
On August 23, 2009 at 12:14 pm
You are a true educator! Most interesting article.
On August 23, 2009 at 1:22 pm
Nice article here. Great for research. Photos are befitting and nice. Well written. Enjoyable to read. Thank you.
On August 23, 2009 at 1:34 pm
Wow, I feel like I’ve just attended class. This was amazingly informative, from the distinction between boat and ship, then each type and then still propulsion, buoyancy, and more. I’m impressed. Great job.
On August 23, 2009 at 3:50 pm
most of what i know to be true are here, i still cannot understand why they dont make things like the hoover craft, wouldnt this be better for the inviroment, love ships even though i hate water and i get sea sick, good views and topics, thanks for sharing this with us sandie x.
On August 23, 2009 at 4:31 pm
It’s amazing to see such large tourist ships floating on the water weighing tons, while a human can drown so easily.
Very comprehensive article!
On August 23, 2009 at 4:57 pm
Another well explained article.
On August 23, 2009 at 6:22 pm
I never knew the motion of vehicles in water could be so interesting!A very well presented,reaserched and informative article as always Mr.Ghaz!Excellent work.
On August 23, 2009 at 6:55 pm
Nice article.
On August 23, 2009 at 7:19 pm
Well done, MrGhaz.
On August 23, 2009 at 9:13 pm
An excellent article!!
On August 23, 2009 at 11:37 pm
Wow! That’s a lot of information. I guess that the shape is why a canoe moves through the water so much more quickly than a john boat.
On August 23, 2009 at 11:43 pm
Great interesting article. We need water vehicles in this life.
On August 24, 2009 at 12:35 am
very well written, alot of work went into this artical and it is very informative, the pictures are awesome, Thanks for sharing
On August 24, 2009 at 1:44 am
What a fascinating article – nice work!
Blessings.
Sincerely,
-Liane Schmidt.
On August 24, 2009 at 1:45 am
Another well researched and informative article Ghazali. Thanks for sharing and teaching.
Monica.
On August 24, 2009 at 3:07 am
Well written article! Great job, keep it up.
On August 24, 2009 at 5:18 am
Another awesome and well presented article. very educational and informative as well. Thanks.
On August 24, 2009 at 7:40 am
Mr ghaz, you can write a textbook. you are superb
On August 24, 2009 at 8:32 am
My friend , you are simply amazing, coming up with interesting article.
On August 24, 2009 at 3:49 pm
Well, what a diligent research you have done on some principles in physics which, some of them, I know!
On August 24, 2009 at 4:15 pm
MRGHAZ,
I enjoyed reading your article. This reminds me of my little island here in Washington. We have a large ship building plant just 20 minutes south of my home. 40-50 percent of the world’s largest yachts and vessels are built there. Thanks for sharing. Like it and dugg it.
Chris
On August 24, 2009 at 7:53 pm
Great article, you are very good at writing!
On October 15, 2010 at 10:14 am
great about your explanation