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A 66 kg student stands on a very light, rigid board that rests on a bathroom scale at each end as shown in (Figure 1).

Sagot :

The reading on the scale is equal to the weight of the student which is 646.8 N.

The given parameters;

  • mass of the student, m = 66 kg

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

[tex]R = ma+ mg\\\\R = m(a + g)\\\\R = m(0 + g)\\\\R = mg[/tex]

The student is at rest and not accelerating, a =0

[tex]R = 66 \times 9.8\\\\R = 646.8 \ N[/tex]

Thus, the reading on the scale is equal to the weight of the student which is 646.8 N.

The complete question is below:

A 66 kg student stands on a very light, rigid board that rests on a bathroom scale at each end as shown in (Figure 1). what is the reading on the scale?

Learn more about Newton's second law here: https://brainly.com/question/3999427