Question: A block is moving along a horizontal surface at 12.5 m/s. It then slows down to 9.25 m/s and travels a distance of 8.75 m.

A block is moving along a horizontal surface at 12.5 m/s. It then slows down to 9.25 m/s and travels a distance of 8.75 m.

If the block has a mass of 1.35 kg, what is the power supplied to the block, by friction?

  • 38.4 W
  • 59.4 W
  • 5.45 W
  • 8.86 W

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