Asked by Anonymous

It takes 228 kJ of work to accelerate a car from 22.3 m/s to 29.2 m/s. What is the car's mass?

Answered by Elena
W=ΔKE =mv₂²/2 - mv₁²/2 =m (v₂²/2 - v₁²/2)
m= W/(v₂²/2 - v₁²/2)=…
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