A boy pushes a box with a force of 75N. How far will the box travel if he does 400J of work

A 2.60 kg box with an initial speed of 4.50 m/s at the bottom of a 30.0degree incline is pushed up the incline by a 15.0 N horizontal force. The coefficient of friction between the box and the incline is 0.250. What is the magnitude of the frictional force that opposes the motion? What is the maximum distance the box travels up the incline? Use energy considerations. Use Newton's second law to calculate the acceleration of the box up the incline. Use your answer from (c) and calculate the maximum distance the box travels up the incline using kinematic equations.