Not Motion Again!

From the top of a 100 m tower, a ball is dropped and at the same time another ball is projected upwards from the ground with a velocity of 25 m/s. Find when (in seconds) and where the two balls meet (distance measured from the ground in m).

Let the time at which they meet be tt seconds and the place where the balls meet be dd meters. Find d+td + t

Assumptions and Details

  • The distance dd is measured relative to the ground.
  • g=9.8ms2g = 9.8 ms^{-2}

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