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  1. GATE2019-2-152
  2. GATE2019-2-152
  3. GATE2019-2-152
  4. GATE2019-2-152

The crank of a slider-crank mechanism rotates counter-clockwise (CCW) with a constant angular velocity $\omega$, as shown. Assume the length of the crank to be $r$.

Using exact analysis, the acceleration of the slider in the $y$-direction, at the instant shown, where the crank is parallel to $x$-axis, is given by

  1. $- \omega ^2r$
  2. $2 \omega ^2r$
  3. $\omega ^2r$
  4. $-2 \omega ^2r$
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