Find a vector v with a given magnitude in the direction

Find the vector v with magnitude 2.7 in the direction of w = < 1, -2, -1 >

This is what i have so far and i will point out where i am stuck.

so, filling in for w we have

Now, from here do i just multiply the 2.7 to the numerator?

A Similar problem in my book, the solution manual does something weird and i cant figure it out like

Then, they go to this final step and i dont see how they are doing that?

Re: Find a vector v with a given magnitude in the direction

Quote:

Originally Posted by

**icelated** Now, from here do i just multiply the 2.7 to the numerator?

Yes.

Quote:

Originally Posted by

**icelated** A Similar problem in my book, the solution manual does something weird and i cant figure it out like

Then, they go to this final step and i dont see how they are doing that?

Recall that .

Re: Find a vector v with a given magnitude in the direction

Re: Find a vector v with a given magnitude in the direction

Quote:

Originally Posted by

**icelated** thank you

Use the thanks button, don't just make a post saying thanks

CB