Question

Three blocks of masses m₁, m₂ and m₃ are connected by a massless string as shown in figure on a frictionless table. They are pulled with a force T₃ = 40N. If m₁ =10kg , m₂ = 6kg and m₃ = 4kg , then tension T₂ will be

Moderate

Solution

F_net = ma , T₃ - T₂ = m₃a ,T₂ - T₁ = m₂a , T₁ = m₁a
solving the above equations, we get

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