Question

Bantuin kak pliss.. no 49 pemyelesaiannya gimana?

Answer 1

Verified answer

F1x = F1 cos a
F1x = 10 cos 30°
F1x = 10 . 1/2 √3
F1x = 5√3 N

F1y = F1 sin a
F1y = 10 sin 30°
F1y = 10 . 1/2
F1y = 5 N

F3x = F3 -cos 30°
F3x = 10 . -1/2√3
F3x = -5√3 N

F3y = F3 sin a
F3y = 10 sin 30°
F3y = 10 . 1/2
F3y = 5 N

Fx = F1x + F3x
Fx = 5√3 - 5√3
Fx = 0 N

Fy = F1y + F2 + F3y
Fy = 5 + 5 + 5
Fy = 15 N

R = √Fx² + Fy²
R = √0² + 15²
R = √0 + 225
R = √225
R = 15 N

Answer 2

Verified answer

F1 dan F3 yang sama besar mengapit sudut 120°
menghasilkan resultan sebesar R1 = 10 N, segaris dengan F2

R1 dan F2 searah menghasikan resultan
R = R1 + F2
R = 10 + 5
R = 15 N ✓