Object on Incline with Horizontal Applied Force

An object is on a frictionless incline and is pushed by a horizontally applied force (rather than the standard force that acts parallel to the incline). The normal force acting on the object is calculated and then the net force and acceleration of the object is found. The worked out solution to the problem can be found here: https://drive.google.com/file/d/12R4fXBIfMMTywk6ePriWWpnrUTxwZo8_/view?usp=sharing