Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton’s second law of motion states that the time rate of change of momentum is equal to the force acting on the particle. See Newton’s laws of motion.
The momentum of any collection of particles is equal to the vector sum of the individual momenta. According to Newton’s third law, the particles exert equal and opposite forces on one another, so any change in the momentum of one particle is exactly balanced by an equal and opposite change of the momentum of another particle. Thus, in the absence of a net external force acting on a collection of particles, their total momentum never changes; this is the meaning of the law of conservation of momentum. See also conservation law; angular momentum.
From Newton’s second law it follows that, if a constant force acts on a particle for a given time, the product of force and the time interval (the impulse) is equal to the change in the momentum. Conversely, the momentum of a particle is a measure of the time required for a constant force to bring it to rest.
Now for the deeper thought…..How is our momentum when we are faced with challenges? Do we sink or stand taller in our faith, our work, our family and our friends? Warp speed is how we need to rise when things go wrong. We should welcome when it is us that others call when they are struggling to share our strength with them and most of all, with a smile and an open heart. God loves heroes, as He has set the example of The Greatest Hero of All!
Fear not, for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand.