Momentum problem - a little help please!

[emzz10]

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

[NeonBlack]

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]

[emzz10]

Thanks. So is the answer 0.677?

[Severian]

Thanks. So is the answer 0.677?

 

Yes.