The problem involves calculating the momentum of a proton moving at a relativistic speed of 0.7c, using its rest mass and relevant equations from relativistic physics.
Some participants agree on the method used for the calculation, while others express discrepancies in their results, prompting requests for more detailed calculations to clarify the differences.
Participants are working with the assumption that the equations of relativistic momentum apply, and there is a focus on ensuring accuracy in arithmetic calculations.
I agree.ZedCar said:Homework Statement
A proton of rest mass 1.67 x 10^-27 kg is moving at a constant speed of 0.7c
What is it's momentum?
Homework Equations
The Attempt at a Solution
Using E = γmc^2 I obtained;
E = 2.10 x 10^-10 J
That's the correct method, but I'm getting something quite different. It is probably just an arithmetic mistake. Can you show more details of this calculation?Then with;
E^2 = (pc)^2 + (mc^2)^2 and solving for p I got;
p = 8.47 x 10^-15
Redbelly98 said:I agree.That's the correct method, but I'm getting something quite different.