I have the problem:
The scalar projection of a vector v on a vector W is the length of v on w.
Now i thought i could just do this:
But then i end up with 24/sqrt(31)
but the answer is supposed to be 24/7
I have also tried going the long way by finding the angle and using the cos(x)=a/c to find the length but i end up with the same wrong answer.