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A box with a mass of 1.386 kilograms collides head-on with a spring constant of 1.26...

A box with a mass of 1.386 kilograms collides head-on with a spring constant of 1.26 m*N. When the box stopped, the spring was compressed by 25.05 centimeters.

The kinetic friction coefficient between the box and the floor is 0.484 and the gravitational acceleration is 9.8 m/s2. At this point, obtain the speed (m/s) of the box just before it comes into contact with the spring.

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Value of spring constant is not clearly given...

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