Please help me with g, h, and i. Thank you!

(11%) Problem 6: Three crates are stacked on the floor. From the bottom of the stack to the top, their masses are my, m2, and m3, respectively, as shown on the diagram. When referring to the various forces, the subscripts / = 1, 2, 3 of the crates will be used, and f will be used to indicate the floor. m3 . Weights, if required, will be denoted with the corresponding subscript of the crate as F.i, for i = 1, 2, 3. m2 . The normal force exerted by object a on object b, if required, will be denoted as Fra-8 for i = 1, 2, 3, f, but a # b. m1 . The force of kinetic friction exerted by object a on object b, if required, will be denoted as Fra-+. for i = 1,2, 3, f, but a # b. 2:48 PM . The force of static friction exerted by object a on object b, if required, will be denoted as Fra-+ for i = 1, 2,3, f. but a # b. * 11% Part (g) Form an expression for the magnitude of the force of the bottom-most crate on the center crate valid for any value of the vertical acceleration, dy , using only the parameters provided in the palette. Fa.1-2 = my ay - my ay - my g + mzg * Attempts Remain Feedback: is available. * 11% Part (h) Form an expression for the magnitude of the force of the floor on the bottom-most crate valid for any value of the vertical acceleration, dy using only the parameters provided in the palette. Faf-1 =mjay + mzay + my g X Attempts Remain 11% Part (i) In an earlier step, an FBD was created for the bottom-most crate under the assumption of equilibrium. Which statement best describes the modifications necessary if that FBD is redrawn under the assumption a,