Asked by Justin

How much work must be done to stop a 1150-kg car traveling at 145 km/h?
Answered by bobpursley
I will be happy to critique your thinking.
Answered by drwls
The car does the work equal to the initial kinetic energy. Unless it hits a spring, or it is a hybrid car, the work done is converted to heat.
Answered by Diamond
convert 145 km/h into m/s
145 × 1000 ÷ 3600= 40.3
then use this equation:
W=Fd
Answered by Diamond
or use
KE= 1/2 mv^2
depending on what is given
Answered by Shahre
Vmch
Gjf
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