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Something has a mass of 40 kg and a velocity of 1 m/s


How much kinetic energy does it have?

Part 2: If it doubles its mass, will its KE also double?

Respuesta :

  • m=40kg
  • v=1m/s

[tex]\\ \sf\Rrightarrow K.E=\dfrac{1}{2}mv^2[/tex]

[tex]\\ \sf\Rrightarrow K.E=\dfrac{1}{2}(40)(1)^2[/tex]

[tex]\\ \sf\Rrightarrow K.E=20J[/tex]

Part 2:-

  • m=80kg

[tex]\\ \sf\Rrightarrow K.E=\dfrac{1}{2}(80)(1)^2[/tex]

[tex]\\ \sf\Rrightarrow K.E=40J[/tex]

  • Yes

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