Question

Another block, another spring. This time around, the block (m = 1.18 kg) is compressing a spring with spring constant k = 273 N/m by 36.3 cm. It is released from rest so it then slides along the horizontal surface shown. This time, there is friction on the horizontal surface, with a coefficient of friction between the block and surface of μk = 0.11. In addition, there is a steady wind blowing to the right, exerting a constant 6.7 N force on the block. How fast is the block moving when it reaches a point 19.4 m away from where it started?

Answer #1

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