True or false: You can apply a force to an object without it actually moving.

True

Explanation: Forces always cause objects to move. An object can experience two or more forces and not accelerate. A contact force results from the physical contact between two objects.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.