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kodGreya [7K]
3 years ago
5

The electric potential at a point in

Physics
1 answer:
Rudik [331]3 years ago
6 0

Answer:

11.3975

Explanation:

Accellus said so

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Answer:

(a) \theta=62.31^{\circ}

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Explanation:

It is given that,

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W=Fd\ cos\theta

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According to work energy theorem, the charge in kinetic energy of the particle is equal to the work done.

So,

cos\theta=\dfrac{W}{Fd}

cos\theta=\dfrac{+30\ J}{12\times 5.38}

\theta=62.31^{\circ}

(b) If the change in the kinetic energy of the particle is (-30) J. The work done by the particle is given by :

cos\theta=\dfrac{W}{Fd}

cos\theta=\dfrac{-30\ J}{12\times 5.38}

\theta=117.68^{\circ}

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