A particle of charge 9 6 C is released from rest at the point x 61 ...

Given that q 96 C Q 66 C and 66 C r1 061 m r2 082 m and ....

A particle of charge +9.6 Î¼C is released from rest at the point x = 61...

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Physics

A particle of charge +9.6 Î¼C is released from rest at the pointx = 61 cm on an x axis. The particle begins tomove due to the presence of a charge Q that remains fixedat the origin. What is the kinetic energy of the particle at theinstant it has moved 21 cm if (a)Q = +66Î¼C and (b)Q = â€“66 Î¼C?

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4.0 Ratings (519 Votes)

Given that

q = 9.6 Î¼C

Q = + 66 Î¼C and - 66 Î¼C

r1 = 0.61 m, r2 = 0.82 m and 0.4 m

a) change in KE = qV = kqQ ( 1 / r1 - 1/r2)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 9 x 10⁹ * 9.6 x 10^-6 * 66 x 10^-6( 1 / 0.0.61 - 1 / 0.0.82)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 2.39 J
b)change in KE = qV
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = kqQ ( 1 / r1 - 1/r2)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 9 x 10⁹ * 9.6 x 10^-6 * -66 x10^-6 ( 1 / 0.61 - 1 / 0.4)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 4.907 J

Please rate my answer, good luck...

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