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Momentum problem - a little help please!

emzz10
in Classical Physics

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Hi,

 

Could someone help me out on this problem :

If p(momentum)/m(mass) is .92 c(speed of light), what is v(velocity) in terms of c?

I'm not sure how to do it. If p=mv, and p/m is .92c, than shouldn't v be .92c as well? But that's not the answer =?

 

Any help would be appreciated!

 

Thanks

Your problem is in assuming that p=mv. I don't know if this is homework or not. If it is, you should have paid attention in class.

The relativistic momentum is:

[math]p=\frac{mv}{\sqrt{1-v^2/c^2}}[/math]

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