A Frictionless Pulley of Negligible Mass Is Hung from the Ceiling

question 73

Multiple Choice

A frictionless pulley of negligible mass is hung from the ceiling using a rope,also of negligible mass.Two masses,m₁ and m₂ (m₁ < m₂) are connected to the rope over the pulley.The masses are free to drop.The magnitude of the tension T_top is ____ the sum of the weights W₁ = m₁g and W₂ = m₂g.

• A)less than
• B)equal to
• C)greater than
• D)unable to tell
• E)depends on T₁ and T₂.

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