What Causes the Acceleration of the Smaller Mass in a Two-Mass Pulley System?

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SUMMARY

The acceleration of the smaller mass in a two-mass pulley system, consisting of masses 1.98 kg and 2.68 kg, is calculated using Newton's second law. The total mass of the system is 4.66 kg, resulting in a net force of 45.668 N when multiplied by the acceleration due to gravity (9.8 m/s²). Dividing this net force by the smaller mass (1.98 kg) yields an acceleration of 23.1 m/s². This calculation confirms that the approach to solving for acceleration using the unbalanced external force is correct.

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Homework Statement



Two masses, 1.98 kilograms and 2.68 kilograms, are attached to a lightweight cord that passes over a pulley as shown below.

What is the acceleration of the smaller mass? Hint: For a system of connected objects, the unbalanced external force acts on the mass of the entire system.

Homework Equations



w=gm

Fnet=ma

The Attempt at a Solution



1.98+2.68=4.66kg

4.66kg(9.8)=45.668 N

45.668N/1.98kg = 23.1 m/s/s

Is this correct?
 
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