Question

There will be another question later building on this one. be sure to save your computations for referencing later. a 4-centimeter rod is attached at one end to a point a rotating counterclockwise on a wheel of radius 2 cm. the other end b is free to move back and forth along a horizontal bar that goes through the center of the wheel. at time t=0 the rod is situated as in the diagram at the left below. the wheel rotates counterclockwise at 3.5 revolutions per second. thus, when t=1/21 sec, the rod is situated as in the diagram at the right below. note that the wheel has its center at the origin.

Answer 1

The student's question is about the principles of rotational motion and dynamics, covering concepts like angular velocity, angular acceleration, and moment of inertia among different rotating objects.

Step-by-step explanation:

The student's question refers to multiple scenarios involving rotational motion. In the questions, various physical quantities such as angular velocity, angular acceleration, tangential speed, tangential acceleration, centripetal acceleration, and moment of inertia are being analyzed for different objects undergoing rotational motion around a fixed axis. The objects include rods, beads on rods, wheels, and spheres, each presenting a unique case reflecting the principles of rotational dynamics in classical physics.