Which tool is used to remove a module from an electronic assembly?

Chip Puller or Integrated circuit Extractor.

Explanation:  A chip puller is a tool which is used to remove a module from bread board or similar electronic assembly. Main purpose of using such tools is to avoid any bending and tension in the socket because it can increase damage through electrostatic discharge. We can easily remove an integrated circuit from its socket using such tools. Generally shape of this tool is like alphabet "A".

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

v=ir = 3x15 =45 v