1. Sand watch

Suppose you have a sandwatch which is not in running state an then you weighed it. Now you turned the sandwatch upside down and made it in running state and now again you weighed it. Will there be any difference in two weighs?

2. Re: Sand watch

i think thr might be some minute change in weight because as there mass is same in running and stopped state but in running state there is difference in there potential difference

3. Re: Sand watch

there will be a difference , due to force applied by the running mass.

4. Re: Sand watch

m just asking dat in running state whether the weight will be more or less than in stop state?

5. Re: Sand watch

I think there will be a difference between the mass of sandwatch owing to the different states (running and before running) it finds itself into.

6. Re: Sand watch

As i think during running state weight should be more as earth gravity pulls every object towards it, with a force .

7. Re: Sand watch

Well. I dont know why some of you are not able to think like I am thinking.May be I am wrong but this is what I think.
Since in running state some of the mass will be in air. So, The sand watch will weigh less.
Correct me if i m wrong.

8. Re: Sand watch

Originally Posted by smart_coder
Well. I dont know why some of you are not able to think like I am thinking.May be I am wrong but this is what I think.
Since in running state some of the mass will be in air. So, The sand watch will weigh less.
Correct me if i m wrong.
We all think like engineers. that's why we think differently. JOKING.

Actually you may be right, I also think that way also, but later it's look like a joke, then i think about earth gravity which pulls each object towards it with a force equal to gravitational force.
That's why I post that solution, which may also be right, Because we all are talking about theory but no one is doing the practical.

9. Re: Sand watch

I will explain with a small example.
Suppose there is a box with pigeons in it. Now, if pigeon starts flying in the box, won't the box will weigh less?

10. Re: Sand watch

no ,never.
It has been proved in physics.

11.

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