The availability heuristic is a mental shortcut that helps us make a decision based on how easy it is to bring something to mind. The representativeness heuristic is a mental shortcut that helps us make a decision by comparing information to our mental prototypes.

photocells convert light energy to electricity

a straight line sloped

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards