1. The problem statement, all variables and given/known data A 710kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car (a) on level ground? (b) up a hill with a slope of 2.0o? Express your answer to two significant figures. 2. Relevant equations p = mv P = ΔW/Δt (but no time information given) 3. The attempt at a solution I am not sure where to begin. I understand that power is the change in work with respect to time, but there is no time information given in the problem, so I am a little lost.