Two objects of unequal mass are connected by a massless rope that passes over a

Question

Two objects of unequal mass are connected by a massless rope that passes over a massless, frictionless pulley. After the objects are released from rest, which of the following statements are true regarding the kinetic energy K and the potential energy U of the system?



Both the potential energy and the kinetic energy remain constant.


The potential energy remains constant while the kinetic energy increases.


Both the potential energy and the kinetic energy increase.


The potential energy decreases while the kinetic energy increases.


The potential energy decreases while the kinetic energy remains constant.

Explanation / Answer

The potential energy decreases while the kinetic energy remains constant. P.E changes into KE. hence KE increases..but PE decreases.

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