A 60kg person is standing on a bathroom scale on the floor. What forces are acti

Question

A 60kg person is standing on a bathroom scale on the floor. What forces are acting on her and what are their magnitudes? What forces are acting on the scale and what are their magnitudes?

Explanation / Answer

(a) forces acting on her and their magnitudes. the force of gravity is acting on person downward = mg = 60 x9.8 = 588 N force of reaction between bathroom scale and person is also acting on him upwards => N = mg = 588 N. (b) forces acting on the scale and their magnitudes. force of normal reaction between person and scale acts on scale in downward direction = mg = 588 N. its own weight is also downward direction. and the normal reaction between the scale and floor of the bathroom acting upwards on the scale = weight of the scale + weight of the person.

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