* Did you use the answer from question 1, which gives the gravitational force on particle 1 due to particle 2? Did you use Newton's third law, then, to determine the gravitational force on particle 2 due to particle 1? It is also a good idea to draw your own sketch showing the force on particle 2. If particle 2 is attracted by particle 1, in which direction does the force on particle 2 point? Next, click off the "Show F1,2" option. Then, reduce the separation distance r to 1.00 m, and increase the angle 0 to 30°. Notice the location of particle 2 at the end of these two procedures. Answer the following questions about the gravitational force on particle 1 due to particle 2: 12 in nanonewtons? a) What is F₁2 = i b) What is the component F12, in nanonewtons? F12x = i 3.335 3.335 nN i 0 nN c) What is the component F12y in nanonewtons? F12y = nN

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.