mathishard127
mathishard127 mathishard127
  • 25-02-2024
  • Mathematics
contestada

A rock is dropped into a well and falls 4 9/10 meters in the first second. Every second after that, the rock falls 9 4/5 meters more than it fell the preceding second. How far down is the water level if the rock touches the water 3 seconds after it is dropped?

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