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how to calculate the unit vector of a vector whose magnitude is given is parallel to another one

Unit vector is a vector which has a modulus or magnitude (size).

Any parallel vector to the vector

a

may be written a λ

a

which is a non-zero scalar.

Don't know how I can help without a question. :erm:

Interesting title.

Original post by Arqam Naveed

how to calculate the unit vector of a vector whose magnitude is given is parallel to another one

If you are given that your vector is parallel to some vector

\mathbf{a}

then the unit vector in that direction is given by

\frac{\mathbf{a}}{|\mathbf{a}|}

thanks guys

The first term of an arithmetic progression is −2222 and the common difference is 17. Find thevalue of the first positive term.

Original post by Arqam Naveed

The first term of an arithmetic progression is −2222 and the common difference is 17. Find thevalue of the first positive term.

What's your expression for u_n? What does this get you when you set u_n to 0?

I get 5

Original post by Arqam Naveed

I get 5

Yep, that's correct.

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