Vektor
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Hard
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui vektor A = 5i + 2j - k. Maka 5A adalah
25i + 10j - 5k
10i + 10j - 5k
25i + 10j + 5k
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui A = -i + 4j - 2k dan B = 6i + 2j + 4k. Hasil dari A.B dan A x B berturut-turut adalah ....
-6 dan 20i - 8j -26k
-6 dan 12i - 16j -22k
6 dan 20i - 8j - 22k
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Momentum merupakan hasil kali massa dengan kecepatan. Sebuah kelereng mempunyai massa 10 kg bergerak dengan persamaan kecepatan v = (3i + 3j) m. Besar momentum yang dimiliki kelereng tersebut adalah ... kg.m/s
30
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Usaha dirumuskan sebagai perkalian titik antara gaya dengan perpindahan. Seseorang memindahkan sebuah benda dengan gaya F = (i + 2j + 3k) N, sehingga mengalami perpindahan s = (3i + 3j) m. Usaha yang dilakukan orang tersebut adalah
9 Nm
15 Nm
20 Nm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui A = 2i + 3j + 6k dan B = 6i + 2j + 3k. Tentukan besar vektor A dan B
7 dan 7
7 dan 4
9 dan 8
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