Two Unequal Masses Hang from Either End of a Massless $\Delta$

question 65

Multiple Choice

Two unequal masses hang from either end of a massless cord that passes over a frictionless pulley. Which of the following is true about the change in gravitational potential energy U) and the change in kinetic energy of the system K) after the masses are released from rest?

• A) "\(\Delta\)U < 0 and \(\Delta\)K > 0"
• B) "\(\Delta\)U = 0 and \(\Delta\)K > 0"
• C) "\(\Delta\)U < 0 and \(\Delta\)K = 0"
• D) "\(\Delta\)U = 0 and \(\Delta\)K = 0"
• E) "\(\Delta\)U > 0 and \(\Delta\)K < 0"

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