Physics - NLM Question with Solution | TestHub

PhysicsNLMSimple Application of NLMEasy2 minQB
PhysicsEasysingle choice

An object is suspended from a spring balance in a lift. The reading is 240 N when the lift is at rest. If the spring balance reading now changes to 220 N , then the lift is moving

Options:

Answer:
C
Solution:

At rest the reading equals the weight: . The reading is now , so the net force is downward: downward.

The acceleration is downward, so the lift is either moving downward with increasing speed or upward with decreasing speed. Among the options, the answer is (C): downward with increasing speed.

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Simple Application of NLM
⏱ 2mℹ️ Source: QB

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