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Eric has a mass of 80 kg. he is standing on a scale in an elevator that is accelerating downward at 1.7 m/s2. what is the approximate reading on the scale?

Respuesta :

cohvenant
F = mg
m = 80kg
g = the acceleration due to gravity (approx 9.8 m/s^2) - the acceleration of the scale = 8.2 m/s^2

Thus the force = 656 Newtons, or 660 N to keep the correct number of significant figures.

Approximate reading on the scale is 648 N

Given that;

Mass of Eric = 80 kg

Acceleration downward = 1.7 m/s²

Find:

Approximate reading on the scale

Computation:

Approximate reading on the scale = mg - ma

Approximate reading on the scale = m[g - a]

Approximate reading on the scale = 80[9.8 - 1.7]

Approximate reading on the scale = 80[8.1]

Approximate reading on the scale = 648 N

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