Perhatikan gambar di samping. Besar resultan ket...

Perhatikan gambar di samping.

Besar resultan ketiga gaya tersebut adalah ....

$0$
$2 square root of 3 space N$
$4 square root of 3 space N$
$8 square root of 3 space N$
$12 square root of 3 space N$

Jawaban:

Tinjau sumbu x.

$sum from blank to blank of F subscript x space equals space F subscript 1 space cos space 30 to the power of 0 space minus space F subscript 2 sum from blank to blank of F subscript x space equals space open parentheses 4 close parentheses space open parentheses 1 half square root of 3 close parentheses space minus space 6 square root of 3 sum from blank to blank of F subscript x space equals space minus 4 square root of 3 space N$

Tinjau sumbu y.

$sum from blank to blank of F subscript y space equals space F subscript 1 space sin space 30 to the power of 0 space minus space F subscript 3 sum from blank to blank of F subscript y space equals space open parentheses 4 close parentheses space open parentheses 1 half close parentheses space minus space 2 sum from blank to blank of F subscript y space equals space 2 space minus space 2 space equals space 0 space N$

Maka, besarnya resultan gaya dengan menggunakan vektor adalah :

$F subscript R space equals space square root of open parentheses sum from blank to blank of F subscript x close parentheses squared plus open parentheses sum from blank to blank of F subscript y close parentheses squared end root F subscript R space equals space square root of open parentheses negative 4 square root of 3 close parentheses squared space plus space open parentheses 0 close parentheses squared end root space F subscript R equals space square root of 48 F subscript R space equals space 4 square root of 3 space straight N$

Ruangguru

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Download di Google Play

Download di Appstore

Produk Ruangguru

Produk Lainnya

Bantuan & Panduan

Hubungi Kami

081578200000

[email protected]

02140008000

Ikuti Kami

Instagram

Facebook

Twitter

Youtube