nodeled as a simple bacitor, the car is to b to make the motor s
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Transcribed Image Text:The stop-start system in a car turns the motor off when the car is
stopped and on when the car starts to move. For the restart,
engineers add a capacitor that is charged using energy generated
as the car brakes. If the motor is modeled as a simple resistance
with a switch in series with the capacitor, the car is to be restarted
within a time t, the current needed to make the motor start is lo, and
given a potential Vo, which of the following expressions describes
the capacitance required?
C = 0t CORRECT
Vo
C
Vo
t High partial credit
Io
C = V
R
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