A 0.75 kg block is held at rest against a spring with a force constant k=730 N/m. The spring is initially compressed a distance “d”. The block is released and slides across a frictionless surface for 20 cm at 4.0 m/s. It then enters a rough patch of length 55.0 cm. The block exits the rough patch with a speed of 3.0 m/s. (A) calculate the distance “d” that the spring is compressed. (B) find the coefficient of kinetic friction

Question
A 0.75 kg block is held at rest against a spring with a force constant k=730 N/m. The spring is initially compressed a distance “d”. The block is released and slides across a frictionless surface for 20 cm at 4.0 m/s. It then enters a rough patch of length 55.0 cm. The block exits the rough patch with a speed of 3.0 m/s. (A) calculate the distance “d” that the spring is compressed. (B) find the coefficient of kinetic friction

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