In: Physics
Two identical point charges, each of charge +2.00x10-6 C and mass 7.00x10-6 kg , are fixed on the y-axis at the points (x,y) = (0, +3.00) meters and (x,y) = (0, -3.00) meters. Suppose a negative charged particle of mass 8.00x10-9 kg and of charge – 6.00 C is released from rest on the x-axis at the point (x,y) = (- 4.00, 0) meters. What will be the speed of the negative charge at the instant it passes though the origin of the coordinate system?
Charge
is at
Charge
is at
Charge
is at
Distance between
is
Distance between
is
When the charge
is at
its velocity is
When the charge
is at
its velocity is
.
Potential energy of the system when the charge
is at
is
( r is the distance between
and
)
Potential energy of the system when the charge
is at
is
Change in potential energy of the system
,
and
Conserving the energy of charge Q of mass m ,
Change in kinetic energy of of mass m + Change in potential energy=0
Speed of the negative charge at the instant it passes through
the origin of the system is