The answer to the question is True
Potential energy behind dams
Mars: 0.38
weight = mass x surface gravity
multiplying your weight on Earth by the number above will give you your weight on the surface of Mars
If you weigh 150 pounds (68 kg.) on Earth, you would weigh 57 lbs. (26 kg.) on Mars
The point obviously is in the 3rs quadrant
So
စ= tan^-1( y/x)-180
စ= -89.7°