Two unequal masses M and m are connected by a light cord passing over a pulley of negligible mass.When released,the system accelerates.Friction is negligible. 
Which figure below gives the correct free-body force diagrams for the two masses in the moving system?
Definitions:
Equilibrium
An economic situation in which no individual would be better off doing something different.
Perfectly Inelastic
A situation where the demand or supply for a good is completely unresponsive to changes in price.
Deadweight Loss
A loss of economic efficiency that can occur when the optimal allocation of resources is not achieved, often due to market failures or government interventions.
Equilibrium Quantity
The quantity of goods or services that is supplied and demanded at the equilibrium price.
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