A particle having charge q = +2.00 ?§C and mass m = 0.010 0 kg is connected to a string that is L = 1.50 m long and is tied to the pivot point P in Figure P25.14. The particle, string and pivot point all lie on a frictionless horizontal table. The particle is released from rest when the string makes an angle ?? = 60.0?ø with a uniform electric field of magnitude E # 300 V/m. Determine the speed of the particle when the string is parallel to the electric field (point a in Fig. P25.14).
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