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Calculate the force of gravity on a 1-kg mass at Earth’s

Chapter 29, Problem 33PAC

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QUESTION:

Calculate the force of Earth’s gravity on a 1-kg mass at Earth’s surface. The mass of Earth is \(6.0 \times 10^{24} \ \mathrm{kg}\) and its radius is \(6.4 \times 10^{6} \ \mathrm{m}\). Does the result surprise you?.

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QUESTION:

Calculate the force of Earth’s gravity on a 1-kg mass at Earth’s surface. The mass of Earth is \(6.0 \times 10^{24} \ \mathrm{kg}\) and its radius is \(6.4 \times 10^{6} \ \mathrm{m}\). Does the result surprise you?.

ANSWER:

Step 1 of 2

Using Newton’s law of universal gravitation is,

Where,

Object’s mass,  

Earth's mass,

Earth's radius,

Gravitational constant,

So,

The force of Earth’s gravity on a  mass at Earth’s surface is

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