The motion is given by two circle trajectories b, c of ponts B and C at the moment B0C0. Construct the position B1, B2 of the point B at instants C1, C2, where C1 = C2.

Hint: The segment length must be fixed. Contruct [icon]/images/ggb/toolbar/mode_compasses.png[/icon] the circle with centre C12 and radius r = |C0 B0|.[br][color=#0000ff][size=150]Task 2 -[/size][/color] Determine the instantaneous centre IC for the moment [color=#0000ff][i]C1 B1[/i][/color].[br]Solution: [color=#0000ff][i]IC[/i][/color] is intersection of normals [color=#0000ff][i]nC[/i][/color] and [color=#0000ff][i]nB[/i][/color] to the trajectories. Locus (tool trase) of [color=#0000ff][i]IC[/i][/color] is fixed centrode.[br][br][color=#0000ff][size=150]Task 3 - [/size][/color][br]