A robot probe drops a camera off the rim of a 150 m high cliff on Mars, where the free-fall acceleration is -3.7 m/s2. Find the time required for the camera to reach the ground.

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 .

answer; how far out of place which the object finished relative to the starting location;