Question

Which statement about work and power correctly describes an automobile race?

The cars do different amounts of work depending on how fast they finish.
The car that finishes last has the lowest power.
The car with the greatest power travels the greatest distance.
The cars do different amounts of work depending on their power.

Answer 1

"The car that finishes last has the lowest power."

Reason: for the same race distance the cars do (approximately) the same amount of work. Power is the rate of doing work (average power = work / time), so the car that takes the longest time (finishes last) has the lowest average power.