What is the weight of a bucketful of water?

  • Thread starter Thread starter siimplyabi
  • Start date Start date
  • Tags Tags
    Water Weight
AI Thread Summary
The discussion centers on calculating the weight of a bucketful of water using a hemispherical bucket with a 2-meter diameter and a mass of 25 kg. Participants debate whether to include the weight of the bucket itself in the total weight calculation. It is clarified that "bucketful" typically refers to the volume of water the bucket can hold, suggesting that the weight of the water alone should be considered. However, some argue that the question implies the total weight, including the bucket. Ultimately, the consensus leans towards including the bucket's weight in the final calculation.
siimplyabi
Messages
9
Reaction score
0

Homework Statement



A helicopter is used to fill buckets with water to drop on fires. The bucket is a hemisphere with a diameter of 2 meters and a mass of 25 kg. The helicopter lowers the bucket into a lake or reservoir to fill it

a) What is the weight of a bucketful of water? [/B]

Homework Equations



[/B]

The Attempt at a Solution



Do I actually need to find how much water weighs?
Or can i just find the weight of the bucked using W=25kg(9.8)

Thanks.
 
Physics news on Phys.org
siimplyabi said:
a) What is the weight of a bucketful of water?

Do I actually need to find how much water weighs?
It says a bucketful of water, so of course you need the weight of the water that would fill the bucket.
What is less clear is whether you should add the weight of the bucket. I expect it intends that you should, but in that case it is worded wrongly. It should ask for the weight of a "bucket, full of water". A bucketful is a measure of volume (for a given bucket), so strictly speaking a bucketful of water just refers to the water in the bucket, not the water plus the bucket.
 
It asks for the weight of a bucketful of water so I would include the bucket.
 
Thank You all :)
 
CWatters said:
It asks for the weight of a bucketful of water so I would include the bucket.
I can eat a spoonful of sugar, but not a spoon full of sugar.
 
haruspex said:
I can eat a spoonful of sugar, but not a spoon full of sugar.
Not unless you want to take a trip to the emergency room.
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Back
Top