Problem 10: A 20-kg child slides down a playground slide with a constant acceleration of a = 1.5 n'st2 parallel to the surface of the slide. The Child starts sliding with an initial speed of v0. Refer to the gure. 1ttpsclfu5b06ca.theexpertta.comeommonIViewAssignmentDetails.aspx Page 8 o Fhe Expert TA | Human-like Grading, Automated! 8130122, 5156 'B-tllcexperttaxmn Part (3) Enter an expression for the child's speed squared, vfz, at the bottom of the slide in terms of a, v0, and the length of the slide, d. Expression : sz = Select from the variables below to write your expression. Note that all variables may not be required. [3. 6. a.b.d. g.h.j,k.m,n,P, S, t.v0 Part (b) If the slide is 4.0 m long and the child's nal speed is vf = 5.0 mfs, what is their initial speed, in meters per second? Numeric : A numeric value is expected and not an expression. v0, max = Part (c) When starting from rest, how long, in seconds, does it take the child to reach the bottom of the slide? Numeric : A numeric value is expected and not an expression. At =