fake6 fake6
  • 14-03-2017
  • Mathematics
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What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39 degrees with the horizontal?

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Аноним Аноним
  • 14-03-2017
Assuming there is no friction 
minimum force = 22.6 * 32 * sin 39  = 455.1 
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