A small block of mass is placed on a smooth horizontal surface between two identical…

PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A small block of mass 0.25 kg0.25\,\text{kg} is placed on a smooth horizontal surface between two identical light springs, each of spring constant 150 N m−1150\,\text{N\,m}^{-1}, fixed to rigid walls. In the equilibrium position both springs are unstretched. The block is pulled 0.040 m0.040\,\text{m} toward the left wall and released from rest. (i) Find the total elastic potential energy stored in the two springs at the instant of release. (ii) Calculate the maximum speed acquired by the block during its subsequent motion.

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