What is gravity?
The Law of Universal Gravitation
Earth’s motion around the Sun is affected by the gravitational pulls of the other planets in the solar system.
The motion of every planet in the solar system is affected by the gravitational pulls of all the other planets.
Earth’s Gravitational Acceleration
Weightlessness and Free Fall
Projectile Motion
Centripetal Force
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Newton’s Third Law of Motion: describes action-reaction pairs this way: When one object exerts a force on a second object, the second one exerts a force on the first that is equal in strength and opposite in direction.
Momentum : the product of its mass and velocity.
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