Anywhere inside the boundaries of the country you are in
It is the velocity of the object.
The one of and eye at some point the light rays will cross and produce an upside down image
Answer:
The angle of the incline above horizontal is 17.81 degrees.
Explanation:
Given that,
Mass of the object, m = 4 kg
Acceleration of the object above the incline, 
We need to find the angle of the incline above horizontal. The net force acting on the object along the incline is given by :






So, the angle of the incline above horizontal is 17.81 degrees. Hence, this is the required solution.