A small object is connected to a lightweight cord of length L=1.80 m that is tied to a point P, as shown in the figure. The object, string, and point all lie on a frictionless, horizontal table. The object has a mass m=0.0100 kg, a charge q=+1.60 µC and is released from rest when the string makes an angle 0 = 70.0° with a unifomm electric field of magnitude E= 260 V/m.
A small object is connected to a lightweight cord of length L=1.80 m that is tied to a point P, as shown in the figure. The object, string, and point all lie on a frictionless, horizontal table. The object has a mass m=0.0100 kg, a charge q=+1.60 µC and is released from rest when the string makes an angle 0 = 70.0° with a unifomm electric field of magnitude E= 260 V/m.
Chapter5: Electric Charges And Fields
Section: Chapter Questions
Problem 99P: A particle of mass m and charge q moves along a straight line away from a fixed particle of charge...
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![A small object is connectedto a
lightweight cord oflength L=1.80 m
that is tied to a point P, as shown in the
figure. The object, string, and point all lie
on a frictionless, horizontaltable. The
v = 0
L
object has a mass m=0.0100 kg, a charge
q=+1.60 µC and is released from rest
when the string makes an angle 0 = 70.0°
with a unifom electric field of magnitude
Тоp view
E= 260 V/m.
a) Calculate the work done by the gravitational force, the nomal force and the
tension in therope
b) Calculate the change in the electric potential between the initial and starting
positions
c) Use “Energy methods for a non-isolated system to detemine the speed (in
m/s) of the object when the string is parallel to the electric field.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F29f64b01-0d6a-4846-973b-838c2384cfc9%2F4e1641fd-fbd5-4e0c-b945-d972e0eff912%2F0yms0cr_processed.png&w=3840&q=75)
Transcribed Image Text:A small object is connectedto a
lightweight cord oflength L=1.80 m
that is tied to a point P, as shown in the
figure. The object, string, and point all lie
on a frictionless, horizontaltable. The
v = 0
L
object has a mass m=0.0100 kg, a charge
q=+1.60 µC and is released from rest
when the string makes an angle 0 = 70.0°
with a unifom electric field of magnitude
Тоp view
E= 260 V/m.
a) Calculate the work done by the gravitational force, the nomal force and the
tension in therope
b) Calculate the change in the electric potential between the initial and starting
positions
c) Use “Energy methods for a non-isolated system to detemine the speed (in
m/s) of the object when the string is parallel to the electric field.
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