NEET 2020 Physics Pulley Systems MCQ Question
Two bodies of mass 4 kg and 6 kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity (g) is:
g/5
g/10
g
g/2
Correct Answer
Detailed Explanation
Using Newton's second law, the net force is (6g - 4g) = 2g. The total mass is 10 kg, so acceleration a = 2g/10 = g/5.
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