- #1

- 150

- 0

## Main Question or Discussion Point

Please tell me why I am wrong here. I know I am, I just want to know why.

K=.5mv^2

E=mc^2

So if all of the energy is kinetic then

mc^2=.5mv^2

Solving for v

v=sqrt(2)*c

However, the "speed limit" is c. How would this be explained? My guess is that the equation for K does not apply here for some reason but I dont really have a clue.

Thanks for the help,

DR13

K=.5mv^2

E=mc^2

So if all of the energy is kinetic then

mc^2=.5mv^2

Solving for v

v=sqrt(2)*c

However, the "speed limit" is c. How would this be explained? My guess is that the equation for K does not apply here for some reason but I dont really have a clue.

Thanks for the help,

DR13