(7%) Problem 7: A child of mass m = 29 kg slides down a slide of height h = 2.5 m without friction. Let gravitational potential energy be zero at ground level. pert TA's Terms of Service, copying this information to any solutions sharing website is strictly forbidden. A 33% Part (a) Write an expression for the child's total mechanical energy, E, at the top of the slide, in terms of the variables in the problem and the acceleration due to gravity g. Grade Summary E = Deductions 0% Potential 100% 7 8 9 HOME Submissions Attempts remaining: 10 5 6 (0% per attempt) 3 detailed view m + END VC BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 3 Feedback: 0% deduction per feedback. 33% Part (b) Calculate the change in the child's potential energy, 4U in joules, from the top to the bottom of the slide at ground level (i.e. AU = Uground - Utop). 4 33% Part (c) What is the child's final speed, vin m/s