9 Circular Motion 171
9.1 Conceptual Framework for Circular Motion
169
9.2 Uniform Circular Motion.....................176
9.3 Nonuniform Circular Motion...............179
Summary....................................................180
Homework Problems..................................181
10 Gravity 185
10.1 Kepler’s Laws..................................186
10.2 Newton’s Law of Gravity..................187
10.3 Apparent Weightlessness................192
10.4 Vector Addition
of Gravitational Forces..193
10.5 Weighing the Earth..........................195
10.6* Evidence for Repulsive Gravity......198
Summary....................................................199
Homework Problems..................................200
Exercises 205
Solutions to
Selected Problems 215
Glossary 221
Mathematical Review 223
Trig Tables 224
Index 225