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How much work is done on a 100 kg crate that is hoisted 3 m in a time of 2 s?
Wiki User
∙ 13y ago
w=2.9kilojoules..
Wiki User
∙ 13y ago
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How much work is done on a 100-kg crate that is hoisted 3 m in a time of 2 s?
-- The force required to lift the crate is equal to its weight.-- Weight of the crate = (M x g) = 100 x 9.8 = 980 newtons.-- Work = (force x distance) = 980 x 3 = 2,940 newton-meters = 2,940 joules.That's the work done to lift the crate, whether the worker takes a millisecond ora month to do the job. The amount of work the job requires doesn't depend onhow fast it's done.The rate at which the work is done is called power.-- If the work is done in 2 seconds, the power is 2,940/2 = 1,470 joules/second = 1,470 watts.-- If you're being paid by the hour, decide to stretch it out, and take exactly one hourto do it, then the power is 2,940/3,600 = 0.817 watt.-- If you're trying to make a good impression on the boss, and you complete the hoist in1 millisecond, then your power level is 2,940/0.001 = 2,940 kilowatts = 2.94 megawatts.-- If you could have completed the job a tiny bit faster ... in 1.97 rather than 2.0 seconds ...then the power would have been 2,940/1.97 = 1,492 watts = exactly 2 horsepower.But the amount of work is the same in every case.
How much power is used when 600j of work are done in 10seconds?
Use the definition of power as energy / time. Or work / time; it's basically the same thing.
How much time to push 100 kg for 100 meters?
The answer will depend on the power. The work can be done in one second or a billion years!
What is work done per unit of time?
power
How do you solve for power if mass distance and time is given?
power=work done/time interval
A crate is pulled across a horizontal floor by a rope At the same time the crate pulls back on the rope in accord with Newton's 3rd law Does the work done on the crate by the rope then equal zero?
Work done = force x mass . gotcha
If a crate trained dog has recently taken to destruction when crated during the day and also damaged the carpet below the crate What could be the cause?
Try not keeping the dog in a crate! They get bored, that's probably why it has resorted to destruction. : : : I am home with my dog all day....winter time, so going out alot less, therefore he is crated alot less...now that I have been going out, this is the behavior I am getting. He is 5 months old, good dog. Not sure if this is teenage issue, separation issue, or maybe I just need to re-crate train or get a bigger crate. He loved his crate early on - hanging out in it all the time. Not so much lately
How much work is done on a 100-kg crate that is hoisted 3 m in a time of 2 s?
-- The force required to lift the crate is equal to its weight.-- Weight of the crate = (M x g) = 100 x 9.8 = 980 newtons.-- Work = (force x distance) = 980 x 3 = 2,940 newton-meters = 2,940 joules.That's the work done to lift the crate, whether the worker takes a millisecond ora month to do the job. The amount of work the job requires doesn't depend onhow fast it's done.The rate at which the work is done is called power.-- If the work is done in 2 seconds, the power is 2,940/2 = 1,470 joules/second = 1,470 watts.-- If you're being paid by the hour, decide to stretch it out, and take exactly one hourto do it, then the power is 2,940/3,600 = 0.817 watt.-- If you're trying to make a good impression on the boss, and you complete the hoist in1 millisecond, then your power level is 2,940/0.001 = 2,940 kilowatts = 2.94 megawatts.-- If you could have completed the job a tiny bit faster ... in 1.97 rather than 2.0 seconds ...then the power would have been 2,940/1.97 = 1,492 watts = exactly 2 horsepower.But the amount of work is the same in every case.
Why are London hosting the World Cup?
Since it has been a long time since they hoisted a world cup. They did it in 1966.
When Pakistan flag was hoisted for the first time and was that before 14th August?
The Pakistan flag was hoisted officially on 14th August, 1947. The Flag was finally approved by the Constituent Assembly on 11th Aug (3 days earlier before hoisting)
How much space does a large dog need in a cage?
The purpose of a dog crate is to keep the pet contained for any variety of reasons. If the dog has too much room, it may show a tendency to relieve itself inside the crate. However if it has too little room then it will have a hard time laying down or moving around. Good common sense should be used when sizing a dog crate for your pet.
If a 75 kg person and a 200 kg crate were launched out of a plane at the same time which one would hit the ground first?
Impossible to say for certain as it would depend on air resistance. Assuming the person is conscious, he could choose to assume a diving position (in which case he'd probably fall faster than the crate since he'd be more streamlined) or a "belly flop" position (in which case he'd probably fall slower than the crate since he'd be less streamlined). If this were done in a vacuum they'd hit at the same time. Then again, if it were done in a vacuum, a plane is going to have a really hard time flying.
Did Harry Houdini escape from a nailed crate?
The illusionist Harry Houdini did escape from a nailed crate. He would be put in a crate that was nailed shut, wrapped in rope, and then lowered in to the water. The first time he performed this illusion was in 1912.
How do you get the three cubes to get the button in snowpeak in Zelda twilight princess?
The first time you enter the room. Start by pushing the crate in the southeast corner across to the southwest. Then push the crate in the northwest corner across the room so it toches the iced crate. Stand behind the crate you just pushed and push it to the south. Then push the same crate westone space so it hits the first crate. Now push the crate one more time south and the switch will be activated. The second time you need to enter the room is different. start by pushing the crate to the north south. Go to the south and shove the crate to the middle of the puzzle so it passes over the middle floor switch. Now shove the crate that's on the eastern edge west then north. So Its sitting in front of the middle floor switch. Run to the crate that's furthest north and push it clockwise around the rim of the puzzle so it hits the crete you have yet to move. Finally face north and push the crate so it is on the switch leading upstairs.
What to do if your puppy stills potties in their crate during crate training?
If you were my client, first question I would ask you is in regards to the size of your crate in proportion to the size of your puppy. Unless a dog is sick or has been left in a crate for an extended period of time (more than 6 hours) most puppies will not potty where they sleep. If your puppy is in a crate that is too large for him, he will have the freedom to use the other side of the crate than he sleeps to relive himself. During puppy crate training, the crate should only be big enough for the puppy to stand up, turn around and lay back down. Some larger crates come with a divider so the crate can grow with your puppy. Also, the puppy should be in and out of his crate during the day, teaching the puppy that the crate is a safe place. For example, when you can't have your eyes on the puppy 100% of the time (doing chores, taking shower) the puppy should be in his proper size crate and should be rewarded when he enters the crate with either affection, or small treat. This will teach him that the crate is a good place to be.
Where does your dog sleep if you are crate training her and she is used to sleeping with you?
if you are crate training her put her in the crate. the first time she starts to whimper go check on her and let her know that she is ok. the next time dont do anything. the third time dont do anything. the 4th time go check on her again. The 5th time go check on her 1 more time and give her a treat. after that, just ignore the whimpering- no matter HOW heartbreaking it is :(
What kind of cage does a degu need?
it needs a crate to be its nice haven make sure your dog thinks the crate is a god thing reward it for its time in the crate the dog will grow to like its crate and feel safe in it u can go to a local store like petsmart to find the right cage make it all nice and cozy
