Chapter+4,+Section+6

PTG:

1. a. 19.6 m/s b. 49 m/s c. 98 m/s

2. a. 3.2 m/s b. 8 m/s c. 16 m/s

3. A. It isn't at rest because the red arrow is much larger than the blue arrow. B. It can be because there is no line that represents the acceleration that says it is accelerating. C. It can because there is no line that represents the acceleration.

4.
 * || Acceleration (up, down, zero) || Scale reading (larger, smaller, equal) ||
 * A. Elevator at rest at top floor ||  ||   ||
 * B. Elevator starts moving downward ||  ||   ||
 * C. Elevator moves down at constant speed ||  ||   ||
 * D. Elevator comes to rest at bottom floor ||  ||   ||
 * E. Elevator begins to move up ||  ||   ||
 * F. Elevator moves up at constant speed ||  ||   ||
 * G. ||  ||   ||