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Mechanical Engineering QUESTION #2520
Question 1
The Coriolis acceleration \(\mathbf{a}_{Cor}\) that appears when a point moves relative to a rotating reference frame is:
  • \(2\boldsymbol{\omega}\times\mathbf{v}_{rel}\)✔️
  • \(\boldsymbol{\omega}\times\mathbf{v}_{rel}\)
  • \(\boldsymbol{\omega}^2\,\mathbf{r}\)
  • \(\dot{\boldsymbol{\omega}}\times\mathbf{r}_{rel}\)
Correct Answer Explanation
From the transport theorem, the Coriolis term is \(2\boldsymbol{\omega}\times\mathbf{v}_{rel}\); it arises from the interaction of the relative velocity with the frame rotation.