Hello xiukhungDraw a diagram showing the forces acting on the mass:

- Its weight, N, vertically down
- The tension, , in the rope
- The normal reaction, , between the plane and the mass

Since the mass is in equilibrium, the sum of the vertical components of these forces is zero. So

Solve for .

The sum of the horizontal components is also zero. So:

Solve for .

Can you complete this now?

Grandad