1. A girl is suspended motionless from a bar which hangs from the ceiling by two ropes.
2. An egg is free-falling from a nest in a tree. Neglect air resistance.
3. A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.
4. A rightward force is applied to a book in order to move it across a desk with a rightward acceleration. Consider frictional forces. Neglect air resistance.
5. A rightward force is applied to a book in order to move it across a desk at constant velocity. Consider frictional forces. Neglect air resistance.
6. A college student rests a backpack upon his shoulder. The pack is suspended motionless by one strap from one shoulder.
7. A skydiver is descending with a constant velocity. Consider air resistance.
8. A force is applied to the right to drag a sled across loosely-packed snow with a rightward acceleration.
9. A football is moving upwards towards its peak after having been booted by the punter. Neglect air resistance.
10. A car is coasting to the right and slowing down.
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