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Two Blocks of Unequal Masses Are Tied by a Spring. the Blocks Are Pulled Stretching the Spring Slightly and the System is Released on a Frictionless Horizontal - Physics

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प्रश्न

Two blocks of unequal masses are tied by a spring. The blocks are pulled stretching the spring slightly and the system is released on a frictionless horizontal platform. Are the forces due to the spring on the two blocks equal and opposite? If yes, is it an example of Newton's third law?

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उत्तर

Yes, the forces due to the spring on the two blocks are equal and opposite.
But it's not an example of Newton's third law because there are three objects (2 blocks + 1 spring). Spring force on one block and force by the same block on the spring is an action-reaction pair.

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अध्याय 5: Newton's Laws of Motion - short answers [पृष्ठ ७७]

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एचसी वर्मा Concepts of Physics Vol. 1 [English] Class 11 and 12
अध्याय 5 Newton's Laws of Motion
short answers | Q 15 | पृष्ठ ७७
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