Physics
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Question

10,000 small balls, each weighing 1 g strike one square cm of area per second with a velocity 100 ms-1 in a normal direction and rebound with the same velocity. The value of pressure on the surface will be,

  1. 2 cross times 10 to the power of 5 cross times Nm to the power of negative 2 end exponent
  2. 2 cross times 10 to the power of 5 Nm to the power of negative 2 end exponent
  3. 10 to the power of 7 Nm to the power of negative 2 end exponent
  4. 2 cross times 10 to the power of 7 Nm to the power of negative 2 end exponent

The correct answer is: 2 cross times 10 to the power of 7 Nm to the power of negative 2 end exponent

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