christiancory12 christiancory12
  • 14-11-2017
  • Physics
contestada

what velocity does a 2kg mass have when its kinetic energy is 16 J

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jacquelinedlc
jacquelinedlc jacquelinedlc
  • 14-11-2017
We can use the equation for kinetic energy, K=1/2mv².
Your given variables are already in the correct units, so we can just plug in the variables and solve for v. 

K = 1/2mv²
16 = 1/2(2)v²
16 = (1)v²
√16 = v
v = 4 m/s

Therefore, the velocity of a 2 kg mass with 16 J of kinetic energy is 4 m/s.
Hope this is helpful!
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