# a) Find the magnitude of the gravitational force (in N) between a planet with mass 8.75 x 1024 kg...

## Question:

a) Find the magnitude of the gravitational force (in {eq}N {/eq}) between a planet with mass 8.75 x {eq}10^{24} \ kg {/eq} and its moon, with mass 2.20 x {eq}10^{22} \ kg {/eq}, if the average distance between their centers is 2.60 x {eq}10^8 \ m {/eq}.

b) What is the moon's acceleration (in {eq}m/s^2 {/eq}) toward the planet? (Enter the magnitude.)

c) What is the planet's acceleration (in {eq}m/s^2 {/eq}) toward the moon? (Enter the magnitude.)

## Newton Laws of Motion:

Newton established his three laws of motion, which describe the mechanics of the universe. The first law defines the concept of inertia. The second law states that force is simply the product of the mass times the acceleration. The third law states that every action has an equal and opposite reaction.

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#### Part (a) - Gravitational Force

Newton's law of universal gravitation states that the force of gravity {eq}F {/eq} exerted by two objects is...

Gravitational Pull of the Earth: Definition & Overview

from

Chapter 15 / Lesson 17
30K

Earth's gravitational pull is often misunderstood, but without it, life on Earth would be impossible. In this lesson, we'll define the gravitational pull and give some examples of how it is used. A quiz is provided to test your understanding.