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Electrostatic force on a charged parricl...

Electrostatic force on a charged parricle is given by `overset(.)F=qvec(E)`. If q is positive `vec(F)uarrrArrvec(E)uarr` and if q negative `vec(F) uarr rArr vec(E ) darr`
Question : In the figure `m_(A) = m_(B) =1kg`. Block A is neutral while `q_(B) = - 1C`. Sizes of A and B are negligible. B is relased from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated

The amplitude of oscillation of the combined mass will be :

A

6 m/s

B

3 m/s

C

9 m/s

D

12 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
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