An object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.?

An object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.





1. Calculate the kinetic energy gained. Answer in units of J.





2. Through how large a potential difference did the object fall? Answer in units of V.An object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.?
kinetic energy


W=muu/2=0.5x21x21/2 joule


conservation of energy


QU=muu/2


U=muu/2Q=0.5x21x21/2x4 VoltAn object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.?
KE = 1/2 M V^2


KE = .5 x .5kg x 21m/s^2 = 110J


Volts = J/C


V = 110J / 4C = 27.5 volts

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