Physics

Problem

25. A particle of charge

Q

and mass

m

is accelerated from rest through a potential difference

V

, attaining a kinetic energy

K

. What is the kinetic energy of a particle of charge

2 Q

and mass

m / 2

that is accelerated from rest through the same potential difference? (A)

1 / 2 \mathrm{~K}

(B)

K

(C)

2 K

(D)

4 K

(A)

1 / 2 \mathrm{~K}

(B)

K

(C)

2 K

(D)

4 K