Question: A light spring having a spring constant of k = 125 N/m is used to pull a 9.50 kg sled on a horizontal ice

A light spring having a spring constant of k = 125 N/m

A light spring having a spring constant of k = 125 N/m is used to pull a 9.50 kg sled on a horizontal ice rink. The coefficient of kinetic friction between the sled and the ice is k = 0.200. If the sled has an acceleration of a = 2.00 m/s, by how much does the spring stretch if it pulls on the sled: (a) horizontally, or (b) at 30.0 above the horizontal? y How to solve? fk n mg kx x

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