Quiz 9

1. Suppose an astronaut is trapped outside her craft, more than 20 meters away. She throws objects from her pack, enabling her to get back to the craft.

  1. What direction should she throw the gear? Draw the situation and the flight of the sacrificed objects.
  2. Suppose the objects in her ...
more ...

Quiz 8

1. Two people push on opposite ends of a box (opposing each other). Person 1 exerts a force of $100 N$, while person 2 exerts a force of $70 N$.

  1. Draw free body diagrams for the person 1, person 2, and the box, assuming that there is no friction.
  2. Make ...
more ...

Quiz 7

  1. A small spacecraft has an engine that can give it a constant acceleration of $1 m/s^2$.
    1. How far will it travel in one hour?
    2. What is the average speed of the craft over that hour?
    3. How far will the craft travel in the second hour of its flight ...
more ...

Homework Five

  1. Read Chapter 9
  2. Review Questions: 9.3, 9.5, 9.8
  3. Problems: 9.1, 9.3, 9.7, 9.13, 9.15
  4. Complete this assignment on paper and turn it in at the beginning of the next session.
more ...