Period 2 Question 1

A rod rests on frictionless ice A rod rests on frictionless ice. Forces that are equal in magnitude and opposite in direction are now simultaneously applied to its ends. The quantity which vanishes is Angular momentum Angular acceleration Total linear momentum Rotational inertia Kinetic energy

Period 2 Question 2

The center of mass of a thin wooden half-ring (semicircle) lies (see Figure) At the center C In the middle of the rim at A Somewhere on the line joining A and C Bad question: the center of mass cannot lie outside the half-ring

Period 3 Question 1

According to Newton’s second law the angular acceleration that is experienced by an object is directly proportional to Its moment of inertia The net applied torque The object’s size Choices 1 and 2 are both valid

Period 3 Question 2

The center of mass of a thin wooden half-ring (semicircle) lies (see Figure) At the center C In the middle of the rim at A Somewhere on the line joining A and C Bad question: the center of mass cannot lie outside the half-ring