In which case car engine must do more work: To start driving from 0 kmph until car reaches 27 kmph or to reach 54 kmph from 27 kmph? Force of resistance in both cases are equal.
I need to base answer of this problem on formulas. I apologize for any grammar mistakes (i'm not native english speaker).
The Attempt at a Solution
V0 = 0 kmph
27 kmph = 7,5 mps
54 kmph = 15 mps[/B]