1. Vectors

Not sure what im doing wrong here,

1.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.

i solved for 1cost(10), 1sin(10) but its saying my answer is incorrect..

2.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.

3.Find the components of the vector with length = 1.00 and angle 25.0 as shown.

2. Hello Juggalomike
Originally Posted by Juggalomike
Not sure what im doing wrong here,

1.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.

i solved for 1cost(10), 1sin(10) but its saying my answer is incorrect..
The components of $\vec{A}$ are
$a\cos\alpha$ and $a\sin\alpha$
along $Ox$ and $Oy$ respectively. So that's $\cos10^o=0.9848$ and $\sin10^o = 0.1736$, correct to 4 d.p.

If the answer you've been given is different from this, then either the answer or the question is wrong!

2.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.
3.Find the components of the vector with length = 1.00 and angle 25.0 as shown.
In a similar way, the components of $\vec{B}$ along $Ox$ and $Oy$ are:
$b\cos\beta$ and $b\sin\beta$, respectively
and the components of $\vec{C}$ are:
$-c\sin\phi$ and $c\cos\phi$, respectively