An annulus has inner and outer radii a and b, respectively and carries auniform surface charge density o (where sigma is a positive constant, the chargeis distributed between the surface of disk of radius a and disk of radius b.) Theannulus is on the xy plane as shown in the figure. A point positive charge ofq and mass m is released at rest at z = 0 and slightly pushed (i.e., its initialspeed is almost zero and can be ignored). Find the ultimate speed of the chargeat z = o in terms of k (Coulomb's constant), o, a,b, m, and q.a.→ Zq,mSelect one:| 2tkqo(b- amTkqo(b – a)m4r kqo(b – a)m2nkqo(b – a)mabTkqo (b – a)тab

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