(Solved):   A bead with a hole through it slides on a wire track. The wire is threaded through the hol ...

 

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 \( h=3.90 R \). (i) (a) What is its speed at point A? (Use the following as necessary: the acceleration due to gravity \( g \), and \( R \).) \( V= \) (b) How large is the normal force on the bead at point \( A \) if its mass is \( 5.70 \) grams? magnitude direction (c) What If? What is the minimum height \( h \) 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.) \( h \)