Classical Physics Homework: Relativistic Velocity Addition

[seto6]

Homework Statement

Now, consider the relativistic velocity addition formula:

speed= (v+u)/(1+vu/c².
If v = u = 0.01c = 1 % of c, what is the relativistic sum of the two speeds?
Express your answer as a percentage of the speed of light to five significant figures.

Homework Equations

the equation is given in the problem

The Attempt at a Solution

this is what i did speed= (1%+1%)/(1+(%*1%)/(100%²)

and got 1.98020% don't know where I am going wrong help!

 

[hikaru1221]

There is nothing wrong. Maybe you round the number quite too much. I got 1.9998%c, very close to 2% (=u+v) as expected.

 

[seto6]

i see. thanks man