Question
a car travels at 25m/s on a flat stretch of road. The driver must maintaint he pressure on the accelerator to keep the care moving at this speed. What is the net work done on the car over a distance of 250m?
Answers
scott
the net work done on the car, by the driver, is ZERO
the force is applied internally to the moving reference frame of the car
this would be like sitting in a wagon and trying to move it by pushing on the inside -- no net work
the force is applied internally to the moving reference frame of the car
this would be like sitting in a wagon and trying to move it by pushing on the inside -- no net work