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seen Apr 16 at 18:36
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Dec
22
comment Do plastic shoes electrically insulate people from the ground?
Thanks a lot for your exhaustive answer but does it mean that using appliances I accumulate charges in my body when I dress plastic shoes? :)
Dec
20
asked Do plastic shoes electrically insulate people from the ground?
Dec
5
awarded  Editor
Dec
5
revised Not working brakes: just another energy conservation problem
added 64 characters in body
Dec
5
comment Not working brakes: just another energy conservation problem
The correct result (reported on the textbook) is 120 m. If I do what you say, the result is 35,17 m, isn't it? Thanks
Dec
5
reviewed Approve suggested edit on Not working brakes: just another energy conservation problem
Dec
5
asked Not working brakes: just another energy conservation problem
Dec
5
comment Energy problem: What's wrong here?
Thanks again! ;)
Dec
5
accepted Energy problem: What's wrong here?
Dec
5
comment Energy problem: What's wrong here?
@namehere same thing, in fact $t_0=0$, sorry for not enough clearness ;)
Dec
5
awarded  Commentator
Dec
5
comment Energy problem: What's wrong here?
@namehere No, I used without distinction $v$ and $\Delta v$, because the first velocity was zero. The problem was a conversion error. Thank you too ;)
Dec
5
comment Energy problem: What's wrong here?
@JasonDavies OMG, you're absolutely right. In my textbook there was $v_f=100 km/h$ originally, which I converted to $27,7 m/s$. When I was solving the problem, I forgot the conversion and I have used $\Delta v=100$. You saved my day. Thanks a lot!
Dec
5
comment Energy problem: What's wrong here?
No problem. The result reported on my textbook is 13s. Thanks a lot!
Dec
5
comment Energy problem: What's wrong here?
@JasonDavies I have checked and checked again! Could you highlight my error? Thanks again
Dec
5
awarded  Custodian
Dec
5
reviewed Approve suggested edit on Energy problem: What's wrong here?
Dec
5
asked Energy problem: What's wrong here?
Nov
13
accepted Rotating sphere and circular trajectory: minimum speed
Nov
5
awarded  Supporter