A 2.00 kg package is released on a 53.1° incline, 4.00 m from a long spring with force constant 1.20 x 102N/m that is attached at the bottom of the incline (Fig.a). The coefficients of friction between the package and incline are μ, = 0.400 and μk = 0.200. The mass of the spring is negligible. (a) What is the maximum compression of the spring? (b) The package rebounds up the incline. When it stops again, how close does it get to its original position? (c) What is the change in the internal energy of the package and incline from the point at which the package is released until it rebounds to its maximum height? m=2.00 kg D=4.00 m 0-53.1° Fig.a

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