Quiz Vektor dan Momentum
Quiz
•
Physics
•
11th Grade
•
Practice Problem
•
Hard
Yenita Yenita
Used 3+ times
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui vektor A = 5i + 2j - k. Maka 2A adalah …
10i + 2j - k
10i + 4j - k
10i + 4j - 2k
5i + 4j - k
5i + 2j - 2k
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Diketahui A = 5i + 7j - k dan B = 2j - 4k. Hasil dari 2A + B adalah …
12i + 16j - 6k
10i - 16j - 6k
10i + 16j - 6k
5i + 16j - 6k
5i + 9j - 5k
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Diketahui A = i + 2j - 2k dan B = 2j - 4k. Hasil dari A . B dan A x B berturut-turut adalah …
12 dan -4i + 4j + 2k
12 dan 4i + 4j - 2k
12 dan -2i - 4j + 4k
4 dan -4i - 4j + 2k
4 dan 4i + 4j - 2k
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Momentum merupakan hasil kali massa dengan kecepatan. Sebuah kelereng mempunyai massa 10 gram bergerak dengan persamaan kecepatan v = (3i + 3j) m. Besar momentum yang dimiliki kelereng tersebut adalah … kg.m/s.
3
3
3 x 10-2
3 x 10-2
3 x 10-3
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
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
10 Nm
15 Nm
18 Nm
20 Nm
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