Asked by matt
A mass is suspended on a spring scale. The scale shows a reading of 5N and stretches a distance of 0.2 meters from its relaxed length.
1)What is the spring constant of the scale?
)If this scale was taken to a planet that has a mass 4 times larger than the earth and a radius 4 times greater than the earth, what would the reading on the scale be when the mass was suspended on it?
2)If this scale was taken to a planet that has a mass 4 times larger than the earth and a radius 4 times greater than the earth, what would the reading on the scale be when the mass was suspended on it?
1)What is the spring constant of the scale?
)If this scale was taken to a planet that has a mass 4 times larger than the earth and a radius 4 times greater than the earth, what would the reading on the scale be when the mass was suspended on it?
2)If this scale was taken to a planet that has a mass 4 times larger than the earth and a radius 4 times greater than the earth, what would the reading on the scale be when the mass was suspended on it?
Answers
Answered by
drwls
1) The definition of spring constant is force divided by the change in length. Do the calculation.
2) The accleration of gravity at the surface of a spherical body is proportional its mass and inversely proportional to the square of the radius.
4/4^2 = 1/4 of the Earth's value of g. A given mass will stretch a spring scale 1/4 as much.
2) The accleration of gravity at the surface of a spherical body is proportional its mass and inversely proportional to the square of the radius.
4/4^2 = 1/4 of the Earth's value of g. A given mass will stretch a spring scale 1/4 as much.
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