Question 36

Graph Z is constant and so must represent the weight of the car, eliminating A, C and E.

Graph Y is not constant, eliminating B.

Graph X is not constant, eliminating D.

(The mass and weight of the car and its gravitational potential energy are all constant.)

Graph Z is constant and so must represent the weight of the car, eliminating A, C and E.

Graph Y is not constant, eliminating B.

Graph X is not constant, eliminating D.

(The mass and weight of the car and its gravitational potential energy are all constant.)