The definition of angular momentum for a single particle with respect to origin O is given by: L =j= ŕ X p P J Use the definition to deduce the mathematical expression for determining the torque of the particle m in the rigid body. Using appropriate examples, explain what is meant by a central force. In central force motion, the angular momentum is a constant of the motion. What does this tell you about the torque experienced by the particle/body? Explain. Name any two laws of Kepler and state what they say

The definition of angular momentum for a single particle with respect to origin O is given by: L =j= ŕ X p P J Use the definition to deduce the mathematical expression for determining the torque of the particle m in the rigid body. Using appropriate examples, explain what is meant by a central force. In central force motion, the angular momentum is a constant of the motion. What does this tell you about the torque experienced by the particle/body? Explain. Name any two laws of Kepler and state what they say