Final answer:
To find the work done by the rock climber, we multiply the force exerted by the distance moved, resulting in 19,800 Joules.
Step-by-step explanation:
Work is defined as transferring energy into an object so that there is some displacement. Energy is defined as the ability to do work. Work done is always the same. Energy can be of different types such as kinetic and potential energy. To calculate the work done by the rock climber, we use the formula for work, which is Work = Force x Distance.
In this case, the rock climber exerted a force of 660 newtons to move up a 30 meters cliff. Therefore, the work done is the product of the force and the distance moved in the direction of the force. Work = 660 Newtons x 30 Meters, Work = 19,800 Joules (J). So, the correct answer is (d) 19,800 J.