(1) The document describes an electric problem involving three point charges: 12C, 24C, and 36C placed 16 cm apart. (2) It asks to find the direction and magnitude of the net electrostatic force on the 12C charge from the other two charges. (3) The solution shows the 12C charge experiences a net 101 N force to the right when the distance is 16 cm between charges.
2. Walker Problem 13, pg. 641
Given that q = +12 C and d = 16 cm, (a) find the direction
and magnitude of the net electrostatic force exerted on
the point charge q2 in Figure 19-30. (b) How would your
answers to part (a) change if the distance d were
tripled?
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2
3. Solution
Draw free body for JUST q2
F 21
k
(12 C )
( 0 . 16 m )
in direction
101 N x
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24 C
F 23
2
from 1 to 2
Walker, Chapter 19
k
( 24 C )
36 C
( 0 . 16 m )
in direction
303 N x
2
from 3 to 2
3