Derivation of First Equation of Motion by Graphical Method The velocity of the body changes from A to B in time t at a uniform rate. Instead of differentiating velocity to find acceleration integrate acceleration to find velocity. First Equation of motion.
The value of x is maximum when sin ot F is maximum ie sin ot F 1 xmax A A which was used as constant while deriving the equation of motion is nothing but the amplitude of simple harmonic motion.
These three equations of motion govern the motion of an object in 1D 2D and 3D. These variables are usually spatial coordinates and time but may include momentum components. More specifically the equations of motion describe the behaviour of a physical system as a set of mathematical functions in terms of dynamic variables. Let an object of mass m moves with an initial speed.