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Acceleration due to gravity g varies slightly over the surface of Earth, so the weight of an object depends on its location and is not an intrinsic property of the object. Weight varies dramatically if we leave Earth’s surface. On the Moon, for example, acceleration due to gravity is only 1.67 m/s 2. A 1.0-kg mass thus has a weight of 9.8 N ...
- 13.3: Gravitation Near Earth's Surface
Weight. Recall that the acceleration of a free-falling...
- 5.5: Mass and Weight
Acceleration due to gravity g varies slightly over the...
- 13.3: Gravitation Near Earth's Surface
The weight of an object on Earth's surface is the downwards force on that object, given by Newton's second law of motion, or F = m a (force = mass × acceleration). Gravitational acceleration contributes to the total gravity acceleration, but other factors, such as the rotation of Earth, also contribute, and, therefore, affect the weight of the object.
- Weight. Recall that the acceleration of a free-falling object near Earth’s surface is approximately g = 9.80 m/s2. The force causing this acceleration is called the weight of the object, and from Newton’s second law, it has the value mg.
- The Gravitational Field. Equation \ref{13.2} is a scalar equation, giving the magnitude of the gravitational acceleration as a function of the distance from the center of the mass that causes the acceleration.
- Apparent Weight: Accounting for Earth’s Rotation. As we saw in Applications of Newton’s Laws, objects moving at constant speed in a circle have a centripetal acceleration directed toward the center of the circle, which means that there must be a net force directed toward the center of that circle.
- Results Away from the Equator. At the poles, a → 0 and Fs = mg , just as is the case without rotation. At any other latitude \(\lambda\), the situation is more complicated.
Acceleration due to gravity g varies slightly over the surface of Earth, so the weight of an object depends on its location and is not an intrinsic property of the object. Weight varies dramatically if we leave Earth’s surface. On the Moon, for example, acceleration due to gravity is only 1.67 m/s 2. A 1.0-kg mass thus has a weight of 9.8 N ...
Nov 20, 2023 · The mass of the object remains the same on these three bodies, but the weight of the object changes. Roughly speaking, the weight on the Moon is 1/6 of the weight on Earth and the weight on Mars is 1/3 of the weight on Earth. Altitude and Weight. Since the gravitational constant g e depends on the square of the distance from the center of the ...
Jul 29, 2022 · On the surface of the earth the distance is about 4000 miles. Scientists have combined the universal gravitational constant, the mass of the earth, and the square of the radius of the earth to form the gravitational acceleration, g . On the surface of the earth, its value is 9.8 meters per square second or 32.2 feet per square second.
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Since all objects on the surface of Earth move through a circle every 24 hours, there must be a net centripetal force on each object directed toward the center of that circle. Let’s first consider an object of mass m located at the equator, suspended from a scale ( Figure ).
