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Verified answer
gaya gesek statis antara lemari dengan lantai bak truk
fₛ = μₛ N
fₛ = μₛ m g
percepatan
ΣF = m a
fₛ = m a
μₛ m g = m a
a = μₛ g
a = 0,75 • 10
a = 7,5 m/s² ✓