According to Newtons second law of motion (see motion), the change in momentum is direct ly proportional to the employ force. Since mass is constant at ordinary velocities, the result of the force is a change in velocity, or an acceleration, which may be a change either in the speed or in the direction of the velocity. Two or more forces acting on a body in different directions may balance, producing a state of equilibrium. For example, the downwa...If you want to get a upright essay, order it on our website: OrderEssay.net
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