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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

When a spring is stretched by a distance , it exerts a force, given by . The work done, when the spring is stretched from 0.1 m to 0.2 m is [UP CPMT 2006]

Answer: (A)

Solution

Work done against the restoring force is \displaystyle$(5x+ dx=[2.

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Question ID VK-155155