Question

Yang ngerti bantuin dong

Answer 1

∑F = ma
W₁ - W₂ = [m₁ + m₂ + ½ (massa katrol 1 + massa katrol 2)] • a
(m₁ - m₂) • g = [3 + 1 + ½ (1 + 1) ] • a
(3 - 1) • 10 = (4 + 1) • a
20 = 5a
a = 20/5
a = 4 m/s² (Jawaban D)

Ok?