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A cart pushing ten bricks or a cart pushing twenty bricks using the same force and going the same distance which has greater kinetic energy?
Wiki User
∙ 15y ago
The same force could not be applied to travel the same distance if there is a larger mass in one instance. Applied force will accelerate a given mass twice as much as a mass half as large. If both are moving the same distance, the 20-brick cart had more kinetic energy when in motion.
Wiki User
∙ 15y ago
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What change in kinetic energy does an airplane experience on takeoff if it is moved a distance of 500 m by a sustained netforce of 5000 N?
Tell you what: We'll calculate how much work is done by the force, not howmuch kinetic energy the plane picks up, and then we'll tell you why.The work done is (force) x (distance) = (5,000) x (500) = 2,500,000 joules.Whenever we do these force/distance/work/energy problems, we always ignorefriction, air resistance, etc. because it's just too hard and complicated to takeall of them into consideration, and it would only get in the way of understandingthe basic principles anyway.How valid is the answer we get when we ignore these things ? Well, it may be OK,and pretty close to reality, for baseballs, stones, bullets, and bricks. But it's definitelynot OK for airplanes. Airplanes are designed specifically to have an intimate relationshipwith the air, and that's the only reason they work at all.If you do 2.5 million joules of work on a baseball, a stone, or even a little red wagon,it may have close to 2.5 million joules of kinetic energy when you stop pushing. Butan airplane won't. It's designed to use some of that K.E. to move air, to generateLIFT, with the ultimate objective of getting off of the ground. That drains awaya big part of the work done to roll down the runway, and that's the big part thatwill never show up as kinetic energy.
What weighs more 100 grams of feathers or 100 grams of bricks?
They both weigh 1000 pounds, exactly the same. They both weigh 1000 pounds, exactly the same.
If bricks weight 4.5 pounds each how many pounds will 200 bricks weight?
900
What is heavier a ton of bricks or a ton of fethers?
This question has been answered to death on this website! To cut a long story short... Given that a ton of feathers and a ton of bricks are of equal mass, but differing volume (the feathers are much less dense, and thus more volumous):Assuming they are measured at the same location on Earth, the ton of feathers would displace more air (a fluid), creating greater upthrust, thus causing them to weigh less.So, a ton of bricks is heavier than a ton of feathers. (on Earth)
Why do bricks have pores?
Bricks have pores because they are made from concrete and concrete is a porous material. Bricks could be made of non porous materials but then they would require a different, and more expensive, medium to hold one to another, where concrete is now used in building to hold bricks together.
How do you separate bricks that have been glued with liquid nails?
To separate bricks that have been glued with Liquid Nails you will need Windshield Cut-Out wire. Begin pushing the wire between the bricks at one corner. Continue using the wire to separate the bricks.
How do you stop dog from barking and pushing Bricks all over yard?
Put all of the bricks away and tell your dog to stop barking by giving him a treat when he does stop barking.
Which has the greater mass a kilogram of feathers or kilogram of bricks?
Neither. A kilogram is the same regardless.
The solid brick shown is made of small bricks of side 1 When the large brick is disassembled into its component small bricks the total surface area of all the small bricks is how much greater than t?
40
What is more dense- a ton of bricks or a ton of feathers?
The answer is very much the same as the answer to the question: "Which weighs most, hot water, cold water, or water colored green ?" The answer, of course, is: That depends on how much you have of each substance. One thing we can definitely guarantee: A pound of bricks, a pound of cheese, and a pound of feathers all have precisely the same, identical, and indistinguishable weight.
Which has a greater mass a kilogram of bricks or a kilogram of feathers?
They both have the same mass. A kilogram measure mass regardless of the material, volume etc.
What is the collective noun for bricks?
The collective noun for bricks is a course of bricks.
What are LEGO bricks?
Lego bricks are little blocks and Lego bricks can connect to other Lego bricks
Are bricks flammable?
Bricks are not flammable, but coal bricks are. IF THERE IS A BETTER ANSWER, IMPROVE.
How do you do a brick wall question in maths where there are 3 numbers at the bottom and then 2 numbers at the middle and then 1 number at the top?
The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.
What does Stephen crane means by his metaphors of bricks and temples?
Stephen Crane used the metaphor of bricks to symbolize the basic building blocks of life, while the temples represent grander aspirations or achievements. Through these metaphors, Crane suggests that success is earned by focusing on the foundational elements first before aspiring to achieve greater heights.
What types of bricks are sold by Austral Bricks?
Austral Bricks manufactures bricks that are designed for retaining walls and other similar purposes. These bricks are high quality yet affordable items.
