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PAT PROYEKSI VEKTOR ORTHOGONAL

Authored by beny setyaningrum

Mathematics

10th Grade

Used 43+ times

PAT PROYEKSI VEKTOR ORTHOGONAL
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui vektor  a=2i+5j+4k\overline{a}=-2\overline{i}+5\overline{j}+4\overline{k}  dan vektor  b=4i+5j+7k\overline{b}=4\overline{i}+5\overline{j}+7\overline{k}  . Panjang proyeksi vektor  a \overline{a}\   pada vektor  b\overline{b}  sama dengan ...

 2310\frac{\text{2}}{\text{3}}\sqrt{10}  

 10\text{}\sqrt{10}  

 3210\frac{\text{3}}{\text{2}}\sqrt{10}  

 2102\sqrt{10}  

 3103\sqrt{10}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Misal vektor  a=4i+yj\overline{a}=4\overline{i}+y\overline{j} dan b=2i+2j+k\overline{b}=2\overline{i}+2\overline{j}+\overline{k} . Jika panjang proyeksi vektor  a pada b\overline{a}\ pada\ \overline{b}  sama dengan 4, maka nilai y =...

1

2

3

4

5

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Diketahui vektor  a=i2j2k\overline{a}=\overline{i}-2\overline{j}-2\overline{k} dan vektor  b=5i+6j+k\overline{b}=5\overline{i}+6\overline{j}+\overline{k}  . Proyeksi ortogonal  vektor  b pada a\overline{b}\ pada\ \overline{a}  adalah...

 i+2j+2k\overline{i}+2\overline{j}+2\overline{k}  

 i+2j2k\overline{i}+2\overline{j}-2\overline{k}  

 i2j+2k\overline{i}-2\overline{j}+2\overline{k}  

 i+2j+2k-\overline{i}+2\overline{j}+2\overline{k}  

 2i+2jk2\overline{i}+2\overline{j}-\overline{k}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Jika vektor  a\overline{a}  tegak lurus  b\overline{b}  , maka proyeksi skalar orthogonal  a pada b\overline{a}\ pada\ \overline{b}  sama dengan...

-2

-1

0

1

2

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui vektor  a=i2j+2k\overrightarrow{a}=i-2j+2k  dan  b=2i3j+6k\overrightarrow{b}=2i-3j+6k  . Proyeksi skalar ortogonal vektor  (2ab) pada a\left(2\overrightarrow{a}-\overrightarrow{b}\right)\ pada\ \overrightarrow{a}  sama dengan . . .

 32-\frac{3}{2}  

 23-\frac{2}{3}  

 00  

 23\frac{2}{3}  

 32\frac{3}{2}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui segitiga ABC dengan koordinat  A(2, 1, 1), B(1, 4, 2) dan C(5, 0, 3)A\left(2,\ -1,\ -1\right),\ B\left(-1,\ 4,\ -2\right)\ dan\ C\left(5,\ 0,\ -3\right)  Proyeksi vektor  AB pada AC\overrightarrow{AB}\ pada\ \overrightarrow{AC}  adalah . . . .

 14 (3i+j2k)\frac{1}{4\ }\left(3i+j-2k\right)  

 314(3i+j2k)\frac{3}{14}\left(3i+j-2k\right)  

 314(3i+j2k)-\frac{3}{14}\left(3i+j-2k\right)  

 17(3i+j2k)-\frac{1}{7}\left(3i+j-2k\right)  

 37(3i+j2k)-\frac{3}{7}\left(3i+j-2k\right)  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui vektor  a=3ij+xk\overrightarrow{a}=-3i-j+xk  dan  b=3i2j+6k\overrightarrow{b}=3i-2j+6k  . Jika panjang proyeksi  a pada b adalah 5\overrightarrow{a}\ pada\ \overrightarrow{b}\ adalah\ 5  , maka nilai  x= . . . .x=\ .\ .\ .\ .  

 7-7  

 6-6  

 55  

 66  

 77  

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