Spring Equilibrium -- Need help!!! :( Hi i have this question: A 200 g wood block is firmly attached to a horizontal spring. The block can slide along a tbale where the coefficient of friction is 0.40. A force of 10 N compresses the string 18 cm. If the spring is released from this position, how far beyond its equilibrium will it stretch in its first swing? Does anyone think they can help me get started on this cause i'm pretty clueless! thx!