Respuesta :

The reading on the scale when the system is placed on elevator accelerating downward is 7.8m (N).

The given parameter

  • downward acceleration, a = 2 m/s²

The reading on the scale is determined by applying Newton's second law of motion;

R = mg - ma

R = m(g - a)

R = m(9.8 - 2)

R = 7.8 m. (N)

where;

  • m is the mass of the system

Thus, the reading on the scale when the system is placed on elevator accelerating downward is 7.8m (N).

Learn more about Newton's second law and reading on scale here: https://brainly.com/question/11603452

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Universidad de Mexico