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A spring with a spring constant of 250.0 N/m is mounted horizontally over a frictionless surface....

A spring with a spring constant of 250.0 N/m is mounted horizontally over a frictionless surface. The spring is compressed by 18.5cm to launch a 650g box along the frictionless surface. What is the speed of the box after it is launched?

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Answer #1

Given Spring constant,

Compression ,

mass of box,

When the box is launched , elastic potential energy of spring is converted to kinetic energy of the box

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