ITS SO URGNET PLEASE
A gold ball has a mass of 150g. Calculate its increase when it's travelling at 50ms^-1. What is this as a percentage of its rest mass ?

Question

ITS SO URGNET PLEASE
A gold ball has a mass of 150g. Calculate its increase when it's travelling at 50ms^-1. What is this as a percentage of its rest mass ?

anonymous · Answer

@ganeshie8 really need help

anonymous · Answer

calculate its increase of what? I'm assuming you mean calculate it's increase in mass as in referring to relativity? If so, look here>>> https://answers.yahoo.com/question/index?qid=20140217021840AABgHuM This should answer your question. :o)

irishboy123 · Answer

m' = m/sqrt(1-v^2/c^2)
where m' = relativistic mass, m = rest mass

so, you need to calc sqrt { 1 - (50)^2/(3X10^8)^2 } and then wade through the decimals as this number is going to very very close to 1, ie the reativistic mass will inrease minisculely from rest mass at this minute speed.