Physics
General
Easy

Question

A balloon has a mass of 10 g in air. The air escapes from the balloon at a uniform rate with a velocity of 5 cm/s and the balloon shrinks completely in 2.5sec. calculate the average force acting on the balloon.

  1. 20 dyne
  2. 5 dyne
  3. 0 dyne
  4. 10 dyne

The correct answer is: 20 dyne

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