Differential Equations, Difference Equations, and Linear Systems10106051011003Differential Equations, Difference Equations, and Linear SystemsSYSTEM EQUATIONSA property common to all basic laws of physics is that certain fundamental quantities can be defined by numerical values. The physical laws define relationships between these fundamental quantities and are usually represented by equations.EXAMPLE 3.1.β€ƒThe scalar version of Newton's second law states that, if a force of magnitude f is applied to a mass of M units, t…