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The Great Sandini is a 60-kg circus performer who is shot from a cannon (actually a...

The Great Sandini is a 60-kg circus performer who is shot from a cannon (actually a spring gun). You don't find many men of his caliber, so you help him design a new gun. This new gun has a very large spring with a very small mass and a force constant of 1400 N/m that he will compress with a force of 4200 N . The inside of the gun barrel is coated with Teflon, so the average friction force will be only 49 N during the distance of 3.0 m that he moves in the barrel.

At what speed will he emerge from the end of the barrel, a distance 1.3 m above his initial rest position?

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therefore , he will emerge with a speed of 13.40 m/s

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