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A-particle-in-an-electric-and-magnetic-field-is-in-motion-The-time-equations-are-in-polar-coordinates-r-r-0-e-t-b-and-t-b-and-b-are-positive-constants-1-Calculate-the-vector-equation-of-t




Question Number 108042 by Ar Brandon last updated on 14/Aug/20
A particle in an electric and magnetic field is in motion.  The time equations are in polar coordinates.  r=r_0 e^(−(t/b))  and θ=(t/b) and b are positive constants.  1\Calculate the vector equation of the velocity of the particle.  2\Show that the angle (v_1 ^′ ,u_0 ′) is constant, and find the value.  3\Find the vector of acceleration of the particle.  4\Show that the angle (v_1 ^→ ,u_n ′) is constant, and find it.  5\Calculate the radius of this trajectory.
Aparticleinanelectricandmagneticfieldisinmotion.Thetimeequationsareinpolarcoordinates.r=r0etbandθ=tbandbarepositiveconstants.1Calculatethevectorequationofthevelocityoftheparticle.2Showthattheangle(v1,u0)isconstant,andfindthevalue.3Findthevectorofaccelerationoftheparticle.4Showthattheangle(v1,un)isconstant,andfindit.5Calculatetheradiusofthistrajectory.

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