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Physic about newton's law


1.
How much work done by Olympic gold medalist power lifter Hydilyn Diaz when she
pushes a car with a force of 900 N at a distance of 250m?


2.
How much work done by a tractor if a large rock is pushed with a force of 5000
N at 2.0 m/s for 20 seconds?

Respuesta :

#1

  • Force=900N
  • Displacement=250m

[tex]\\ \sf\longmapsto Work=Force(Displacement)[/tex]

[tex]\\ \sf\longmapsto Work=900(250)[/tex]

[tex]\\ \sf\longmapsto Work=225000J[/tex]

[tex]\\ \sf\longmapsto Work=225KJ[/tex]

#2

  • Displacement=2(20)=40m
  • Force=5000N

[tex]\\ \sf\longmapsto Work=40(5000)[/tex]

[tex]\\ \sf\longmapsto Work=200000J[/tex]

[tex]\\ \sf\longmapsto Work=200KJ[/tex]

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