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Gravity. Your views

Please drop in your comments in this note based on your view about my set GRAVITY.

You are most welcome to give suggestions to improve my questions..................

Note by Sravanth Chebrolu
2 years, 8 months ago

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@Sravanth Chebrolu Thanks,A very nice set.
I really enjoyed solving your questions,i solved all the questions,feeling awsome. Looking for more sets by you.Keep posting.

Akhil Bansal - 2 years, 1 month ago

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Awesome! Have you made similar sets for other topics as well ?

People like you make brilliant an awesome place to learn . I am enjoying this set a lot. Please keep posting such questions, they are interesting!

Terry Chadwick - 2 months, 3 weeks ago

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Thanks a lot! (No, this is the only set I've made)

I'm happy that you liked the problems, but I haven't been active lately so I couldn't continue posting. I'll be back soon and I'll keep posting.

If you would like questions of some select topics please leave a comment below, I'd try posting problems on them. Do check my profile to find other problems of mine, stay tuned for more!

Sravanth Chebrolu - 2 months, 3 weeks ago

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You have provided awesome questions for Mechanics. I will enjoy solving some Thermodynamics and Magnetism problems. It'll be awesome if you could provide links to such sets. Anyways, you should make some more sets.

Have you solved some of my sets and questions?

Terry Chadwick - 2 months, 3 weeks ago

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@Terry Chadwick Thanks! Sure you would... I am afraid I havent made any other sets, but I'll be making more if them soon.

No, I'll try when I find time :)

Sravanth Chebrolu - 2 months, 2 weeks ago

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@Sravanth Chebrolu Don't worry and be afraid friend. :)

Terry Chadwick - 2 months, 2 weeks ago

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The problem " Gravity Niagara Falls This Time " has the exact answer 526588.2353 kg(per minute). Because, mgh = (5000)(746)(100/85)(60). As you've said g=10 & h=50, we get m= 526588.2353 kg(per minute). Your answer is 527000. Why? It is a Bit Far from the exact answer. If we post the answer to the nearest integer, the answer is very clearly 526588 kg(per minute). Kindly tell, where am I wrong? Shouldn't the answer be more exact? Kindly notice this. I hope you will also get the answer 526588 kg(per minute), NOT 527000 which is far away from the correct one.

Rubayet Tusher - 2 years, 6 months ago

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Thanks for writing in sir! I am extremely sorry for not mentioning to round off your answer, it is my mistake.

I'm sorry for my mistake, please reply and give your views

Sravanth Chebrolu - 2 years, 6 months ago

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No problem. No need to sorry ... That happens ....... After all, we all are human .... And, please never call me Sir ... I am just a student like you and learning new things regularly ..... By the way, your this set "GRAVITY" was really creative and praiseworthy... Please keep on posting problems like this in future ! Thanks a lot for your knowledge sharing .....

Rubayet Tusher - 2 years, 6 months ago

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@Rubayet Tusher Thank you, very much I respect your comment sincerely, thanks for liking my set and forgiving me.

The question in discussion was posted long before when I was very new to this website and committed such mistake, in future I hope I will not do such things, thank you!

Sravanth Chebrolu - 2 years, 6 months ago

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The question named Gravity slope forces has incorrect answer. Work done by force will be equal to change in potential energy. hence 1 + 2 will be 2mglsin30... please correct me if i am incorrect somewhere

Ťånåy Nårshånå - 2 years, 6 months ago

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The mistake you've done is, you've missed out the "Friction" Case into calculation. We know, "mu"=tan(theta). So, "mu" becomes tan(30)=(1/sqrt3). Then the WORK for lifting up the block will be ((98+98)(3))=588 Joules Itself. Then, as we have lifted the block up a HEIGHT of (3/2), So, the increase in it's potential energy will be mg(3/2)=294 Joules. Then The sum becomes 588+294=882 Joules which is the correct answer.

Rubayet Tusher - 2 years, 6 months ago

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but mu=tantheta is only valid when it is the limiting case of sliding. Please refer standard texts. Also there is not mention of friction in the question.

Ťånåy Nårshånå - 2 years, 5 months ago

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Please see my solution for the same.

Sravanth Chebrolu - 2 years, 6 months ago

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They are amazing...... I learnt a lot about gravity and the twists in the questions. They are quite brain teasing also !! Well..... What else can I say. The questions are as brilliant and amazing as the same way u are....

Skanda Prasad - 2 years, 8 months ago

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well, thank you Skanda................ Any suggestions????????????

Sravanth Chebrolu - 2 years, 8 months ago

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