Q1. Originally a wheel rotating about a fixed axis at a constant angular deceleration of 0.7 rad/s2 has an angular velocity of 0 rad/s and an angular position of 8.8 rad. What is the angular position of the wheel after 2.7 s?
Answer in units of rad.
Q2. A paperweight is made of a solid glass hemisphere of index of refraction 1.58. The radius of circular cross section is 4.5 cm. The hemisphere is placed on its flat surface, with the center directly over a 2.5 mm long line drawn on a sheet of paper. What length of line is seen by someone looking perpendicularly down on the hemisphere?