Page 17 - PENGEMBANGAN E-LKPD TERINTEGRASI SIMULATION VIRTUAL LAORATORY PADA MATERI GERAK DAN GAYA KELA VII SMP/MTS

FR = F1 - F2

= 25
1
= 45
2
= 20
3

Gambar 3. Tarik tambang Ʃ = − − 3

2
1

Contoh soal resultan gaya = 25 − 45 – 20
= −40

= 10
1
= 20 = 22

1
2
= 5 = 18
2
3
= 40
3

Ʃ = + −
2
1

3
= 10 + 20 – 5 Ʃ = − + 3
1
2

= 25 = 22 − 18 + 40

= −44