Diketahui a⃗=i+2j+2k, b⃗=−3i−j−2k. Tentukan a⃗.b⃗!

Vektor

Quiz
•
Physics
•
11th Grade
•
Easy
Harjono Harjono
Used 1+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika vektor a = 12 i + 5 k .
Maka panjang vektor a adalah ...
|a| = 11
|a| = 13
|a| = 15
|a| = 17
|a| = 19
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A = 5i + 7j , B = -6i + 2j maka
B - A = ...
-i + 9j
11i + 5j
-11i -5j
5i + 11j
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amir berjalan 5 m ke timur, kemudian melanjutkan perjalanan 12 m ke utara. Besar perpindahan Amir adalah.....
10 m ke timur laut
11 m ke timur laut
12 m ke timur laut
13 m ke timur laut
17 m ke timur laut
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Resultan dari dua buah gaya sebesar 30 N dan 40 N yang mengapit sudut adalah ....
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Resultan ketiga gaya pada gambar tersebut adalah ....
5 N, searah sumbu x positif
6 N, searah sumbu x positif
7 N, searah sumbu x positif
19 N, searah sumbu x positif
23 N, searah sumbu x positif
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seorang anak berjalan lurus 2 meter ke barat, kemudian belok ke selatan sejauh 6 meter, dan belok lagi ke timur sejauh 10 meter. Perpindahan yang dilakukan anak tersebut dari posisi awal ….
18 meter arah barat daya
14 meter arah selatan
10 meter arah tenggara
meter arah timur
2 meter arah tenggara
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