it has more mass
Kinetic energy and potential energy.
The term 'mechanical energy' refers to the sum of the kinetic energy and the gravitational potential energy of an object,
The sum of all forces on an object is called the "net" force on it.
For an object at rest, we call that sum of forces "zero".
All stationary objects have no momentum they do not have any motion to have momentum you need mass and motion
the angle of the incident is the angle of the ray