An electric towing vehicle moves equipment across a warehouse floor for 18 s. Its input power is 2.0 kW and its mean power dissipation is 500 W. The vehicle exerts a constant driving force of 900 N in the direction of motion. What distance does the vehicle travel?
50 m50\ \mathrm{m}50 m
10 m10\ \mathrm{m}10 m
30 m30\ \mathrm{m}30 m
40 m40\ \mathrm{m}40 m