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PhysicsNLMSimple Application of NLMEasy2 minQB

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How could a 10 kg object be lowered down from a height using a cord with a breakup strength of 80 N, without breaking the cord .

Answer:

Solution:

For the object lowered with downward acceleration $a$ : $m g - T = ma$ , so $T = m (g - a)$ .

The cord must not break: $T < 80 N \Rightarrow 10 (10 - a) < 80 \Rightarrow a > 2 m/ s^{2}$ .

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Simple Application of NLM

⏱ 2mℹ️ Source: QB

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