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?

Answer 1

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