4) The power P that must be delivered by a car engine varies directly as the distance d
that the car moves and inversely as the
time t required to move that distance. To
move the car 500 m in 50 s, the engine
2.09 must deliver 147 kilowatts (kW) of power.
be How many
kilowatts must the engine
je deliver to move the car 700 m in 30 s?
100