NEET Physics Work Done by Forces MCQ Question
Consider a block attached to a massless spring on a smooth horizontal surface, as described in the NCERT context. If the spring is compressed and then released, what type of work is done by the spring force on the block as it moves back to equilibrium?
Positive work
Negative work
Zero work
Variable work
Correct Answer
Detailed Explanation
The spring force does positive work on the block as it moves towards the equilibrium position, converting potential energy stored in the spring into kinetic energy of the block.
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