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Initial velocity

  1. Sep 26, 2013 #1
    A stone released from balloon moving upwards with some constant velocity, the initial velocity of stone is same as the velocity of balloon with opposite sign, but how? What i thought is that the instant stone is released which goes upwards with balloon, stone which is going upwards would stop (t=0) velocity (u=0).
  2. jcsd
  3. Sep 26, 2013 #2


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    Staff Emeritus
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    So you're saying that there's NO difference between just releasing the stone from a stationary balloon that isn't moving? Think again.

  4. Sep 26, 2013 #3
    No, not opposite sign. Same sign.
    You're free to think whatever you want. That doesn't make it right.
  5. Sep 26, 2013 #4


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    Staff: Mentor

    Think about that for a moment. When you throw a stone upwards, you release it from your hand while your hand is moving upwards rapidly... What happens?
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