A bead with a hole through it slides on a wire track. The wire is threaded through the hole in the bead, and the bead slides without friction around a loop-the-loop (see figure below). The bead is released from rest at a height 7 = 3.108. i 9 A e . R - t @ (a) What is its speed at point A? {Use the following as necessary: the acceleration due to gravity g, and 82.) (b} How large is the normal force on the bead at point & if its mass is 5.60 grams? magnitude N direction Select w (c) What If? What is the minimum height / from which the bead can be released if it is to make it around the loop? (Use any variable or symbol stated above as necessary.)