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Cumulative absolute velocity is obtained by integrating the

  • A.square of the acceleration over time
  • B.displacement over the whole record
  • C.velocity over the strong motion duration
  • D.absolute value of acceleration over time

Answer: D

Correct answer: absolute value of acceleration over time

Cumulative absolute velocity integrates the modulus of the acceleration, so every excursion adds to the total regardless of sign and the result grows with both amplitude and duration. It was developed as a damage measure for nuclear plant, where it discriminates far better than peak acceleration between motions that damage equipment and those that merely shake it.

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