You took a Tesla Model S for a test drive. The car weighs 4,500 lb and can accelerate from 0 to 60 mph in 2.27 seconds. The car has a 581 kW battery pack. Determine the efficiency of the vehicle. [Ans. to check: 55.5%]

Patricia Bean 2022-07-15 Answered
You took a Tesla Model S for a test drive. The car weighs 4,500 lb and can accelerate from 0 to 60 mph in 2.27 seconds. The car has a 581 kW battery pack. Determine the efficiency of the vehicle. [Ans. to check: 55.5%]
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Answers (1)

Jaylynn Huffman
Answered 2022-07-16 Author has 14 answers
Given, mass, m = 4500 l b 4500 × 0.4534
m = 2041.167 k g
V max = 60 m p h = 60 × 0.44704 = 26.8224 m / s
accelerator= V max V min t = 26.8224 2.27
a = 11.816 m / s 2
P o w e r = F × V a r g = m a V a r g = 2041.167 × 11.816 × [ 26.8224 + 0 2 ]
P o o t = 323458.04 k l a t t s
E f f i c i e n c y ( n ) = P o o t P i n = 323.4 581 = 55.6
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