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  3. Physics
  4. A ball is dropped from the top of a building. The ball takes 0.5s to fall past the 3m length of a window at certain distance from the top of the building. Speed of the ball as it crosses the top edge of the window is (g=10m/s2)

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Q. A ball is dropped from the top of a building. The ball takes 0.5s to fall past the 3m length of a window at certain distance from the top of the building. Speed of the ball as it crosses the top edge of the window is $(g=10m/s^2)$

Motion in a Straight Line

Solution:

3 = $(\nu \times 0.5) + \frac{1}{2} \times 10 \times (0.5)^2$