zatv83axu9 zatv83axu9
  • 16-02-2021
  • Physics
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Two people each do 100 joules of work by pushing a crate to the right. During this process, 50 joules of heat is generated from the
friction between the floor and the crate. How much energy is gained by the crate during this process?

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jocelynsuarez9
jocelynsuarez9 jocelynsuarez9
  • 16-02-2021
Because of friction, net work on the crate is less. ∆KE = Net work = net force x distance = (100 N – 70 N)(10 m) = 300 J.
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