Determine the energy required to accelerate a 1300-kg car from

Russell Gillen 2021-12-19 Answered
Determine the energy required to accelerate a 1300-kg car from 10 to 60 km/h on an uphill road with a vertical rise of 40 m.
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Expert Answer

peterpan7117i
Answered 2021-12-20 Author has 39 answers
Givens:
m=1300kg
V1=10kmh
V2=60kmhV
Δz=40m
g=9.81ms2
Solution:
Note : 1kmh=1000m60×60s=518;ms
The required energy is the sum of the change in potential energy and the change in kinetic energy.
ΔE=mgΔz+mΔV22=mgΔz+mV22V122=1300[9.81×40+6021022×52182]
=685660.1235J=685.66kJ

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