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m = 1 ton = 1000 kg
Vo = 0
a = 5 m/s²
t = 2 s
W = ___?
perpindahan
S = Vo t + ½ a t²
S = 0 + ½ • 5 • 2²
S = 10 m
gaya
F = m a
F = 1000 • 5
F = 5000 N
usaha
W = F S
W = 5000 • 10
W = 50000 J ← jwb
atau
W = ½ m a² t²
W = ½ • 1000 • 5² • 2²
W = 50000 J ←