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A horizontal force of 5.0 newtons acts on a 3.0-kilogram mass over a distance of 6.0 meters along a horizontal, frictionless surface. what is the change in kinetic energy of the mass during its movement over the 6.0-meter distance?

Respuesta :

From the law of conservation of energy, energy can never be destroyed nor created but can be transformed from one form to another. In this case the energy possessed by the body at rest will be converted to kinetic energy (when the body is in motion). Work done is given by force acting on a body multiplied by the distance covered. Therefore, work done is equal to 5 × 6 = 30 Joules.
Thus, the energy possessed at 6 meters will be 30 Joules

ajeigbeibraheem

The change in the kinetic energy during the movement is 30 Joules.

The change in the kinetic energy of the mass during the movement can be determined by considering the work done by the force. It can be expressed by using the formula:

ΔK.E = Force × distance

From the parameters given:

  • The horizontal force = 5.0 N
  • The mass  = 3.0 kg
  • Distance = 6.0 meter

ΔK.E = 5.0  × 6.0

ΔK.E = 30 Joules

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