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  1. Dynamics
  2. Law of Universal Gravitation and Kepler's Law
  3. Law of Gravitation Example # 3
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Force and Newton's Law of Motion
Applications of Newton's Laws of Motion
Frictional Forces
Centripetal Acceleration and Circular Motion
Law of Universal Gravitation and Kepler's Law
Newton's Law of Universal Gravitation
Law of Gravitation Example # 1
Law of Gravitation Example # 2
Law of Gravitation Example # 3
Gravitational Force on Space Shuttle
Gravitational Force on Moon due to Sun and Earth
Calculation of Gravitational Acceleration
Effect of Earth's Rotation on Weight and Gravitational Constant
Satellite Motion and Geosynchronous Satellites
Catching a Satellite in Orbit
Apparent Weightlessness
Kepler's Laws of Planetary Motion
Derivation of Kelper's Third Law
Calculation of Mass of the Sun
Perturbations
Lagrange Point
Lagrange Point (L1) Calculation
Gravitational Field
Principle of Equivalence and Curvature of Light

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Law of Gravitation Example # 3

Content Provider AK Lectures
Description Four spheres with equal mass are placed at the four corners of a square. Knowing the mass of each sphere and the length of the square, we would like to calculate the net gravitational force that the lower left mass experiences due to the other three masses. To find the net gravitational force, we need to sum up all the forces acting on the object along the x and y directions. We then take the sum of the squares of these two values and take the square root of that to determine the magnitude of the net force. In order to calculate the direction, we need to take the inverse of the tangent function of the ratio y component force to the x component force. This will give us the angle that the net force makes with respect to the horizontal axis.
Language English
Access Restriction Open
Subject Keyword Classical Physics corners sphere forces values squares ratio y component force masses object
Content Type Video
Educational Role Teacher Student
Educational Use Self Learning Lecture Reading
Resource Type Video Lecture
Education Level Under Graduate
Subject Classical mechanics; solid mechanics
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