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- Besaran-besarn GL
S1 = 60 km (ke Timur)
S2 = -20 km (ke Barat)
Jarak tempuh truk
= | S1| + | S2 | = | 60 | + | -20 | = 80 km ←
Perpindahan truk
= S1 + S2 = 60 + (-20) = 40 km ke arah Timur ←
Ok ?