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Grade: upto college level

                        

During a violent thunderstorm, hail the size of marbles (diameter = 1.0 cm) falls at a speed of 25 m/s. There are estimated to be 120 hailstones per cubic meter of air. Ignore the bounce of the hail on impact. (a) What is the mass of each hailstone? (b) What force is exerted by hail on a 10 m X 20 m flat roof during the storm? Assume that, as for ice, 1.0 cm 3 of hail has a mass of 0.92 g

5 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
471 Points
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5 years ago
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Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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