036I 2 − 180I + 88 000 = 0
(3)
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(ii) Solving the equation above produces an answer of I = 550 A. At maximum
power, the car can accelerate from rest to sixty miles per hour in under 7 s.
The maximum charge capacity of the battery within this HEV is 6.1 amp-hour.
Deduce whether the battery could maintain this current for up to 7 s.
(2)
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(Total for Question 17 = 11 marks)