Answer:
F = 580.25 N
Step-by-step explanation:
It is given that,
A box at rest on a ramp at an incline of 22°
The normal force on the box is 538 N
We need to find the gravitational force on the box.
The force of gravity acting on an object is equal to its weight. So,
F = mg
But here the box is incline at an angle of 22 degrees
It means that mg will resolve in rectangular components such that, normal force is :

So, the gravitational force on the box is 580.25 N.