Final answer:
To calculate the work done when pushing a car, multiply the force applied (1200 N) by the distance over which the force is applied (30 meters) to get 36000 J.
Step-by-step explanation:
The question involves the calculation of work done when a force is applied to an object over a distance. The formula for work done (W) is the product of force (F) and the distance (d) over which the force is applied, given that the force and distance are in the same direction. In this instance, with a force of 1200 N pushed over a distance of 30 meters, the work done would be W = F × d or W = 1200 N × 30 m. Performing the multiplication gives us a result of W = 36000 J, which corresponds to option b). Therefore, the correct answer to the question is b) 36000 J.