Any theories about this:
I was given a lab experience where I had 6 test tubes each with a different weight and I had to time the time it took to get through a 1L cylinder full of water.
Here is the problem: my data
3 times out of 6, they all took roughly the same time to fall(±0.03 sec)
1 out of 6, the heavier the weight, the slower they fell
2 times out of 6, the heavier the weight, the faster the fall
I am supposed to find a relation between the speed in water and the weight.
speed = distance/time
The Attempt at a Solution
Since it's impossible for a heavier weight to be slower than a lighter weight, I rule out that data. I think that water offers more resistance than air to speed so my weight would be falling slower in water than in the air.
Since these are real world tests, I don't really need to calculate anything. I just need to find the relation between speed in water and weight, with the theories related to the relation. Maybe some equations, if possible. Thanks.