Final answer:
To solve this problem, calculate the horizontal and vertical components of the force, find the accelerations of the cart using Newton's second law, and use trigonometry to find the total acceleration and angle of the net force.
Step-by-step explanation:
The subject of this question is Physics and it is suitable for High School level students.
To solve this problem, we need to break the 450N force into its components. The horizontal component of the force is given by F_h = F * cosθ, where θ is the angle of the force. The vertical component of the force is given by F_v = F * sinθ. In this case, F_h = 450N * cos35° and F_v = 450N * sin35°.
By using these components, we can find the horizontal and vertical accelerations of the cart using Newton's second law, F = ma, where F is the net force on the cart, m is the mass of the cart, and a is the acceleration. Once we have the accelerations, we can use trigonometry to find the total acceleration of the cart and the angle of the net force.