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A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and ...

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A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and ...

A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and negligible mass, compressing the spring a distance x. After it is released, the box slides up a frictionless incline as shown in the figure and eventually stops. If we repeat this experiment but instead use a spring having force constant 2k

▸ just as it moves free of the spring, the speed of the box will be

times as great as before.

▸ just as it moves free of the spring, the kinetic energy of the box will be twice as great as before.

▸ the box will go up the incline twice as high as before.

▸ All of the above choices are correct.

▸ None of the above choices is correct.

Textbook

Essential University Physics

Edition: 3^rd

Author: Wolfson

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