A frictionless pulley of negligible mass is hung from the ceiling using a rope,also of negligible mass.Two masses,m₁ and m₂ (m₁

Question

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

Quizplus · Accepted Answer

Since the pulley is frictionless and the rope is massless, the tension in the rope must be the same on both sides of the pulley. Therefore, T_top is equal to the sum of T₁ and T₂.

A Frictionless Pulley of Negligible Mass Is Hung from the Ceiling