'Kinetic energy of the particle
The kinetic energy, T, of a particle, P, is given by
\'T = 1/2 m v^2\'
where m is the mass of particle P, and v is the velocity of the
particle in the supplied ReferenceFrame.
Parameters
frame : ReferenceFrame
The Particle\'s velocity is typically defined with respect to
an inertial frame but any relevant frame in which the velocity is
known can be supplied.
Examples
>>> from sympy.physics.mechanics import Particle, Point, ReferenceFrame
>>> from sympy import symbols
>>> m, v, r = symbols(\'m v r\')
>>> N = ReferenceFrame(\'N\')
>>> O = Point(\'O\')
>>> P = Particle(\'P\', O, m)
>>> P.point.set_vel(N, v * N.y)
>>> P.kinetic_energy(N)
m*v**2/2'

def kinetic_energy(self, frame):

    return (((self.mass / sympify(2)) * self.point.vel(frame)) & self.point.vel(frame))
