Question

 3

 Select the THREE responses that are correct. If an object's position versus time graph is a

 straight line with a positive slope, then that object is

 moving with a constant velocity.

 moving with zero acceleration.

 moving upward.

 moving with a constant speed.

 moving with a constant, non-zero acceleration.

4

 An object can reverse its direction of travel when it has a constant acceleration.

 True

 False

 5

 Let us take up to the positive direction. If you throw a small rock straight up and catch it

 when it returns to you, its velocity vs. time graph will look like

 A. an up-side down V, with the first point at the origin

 B. a right side up V, with the first point at a large positive value

 C. a flat horizontal line

 D. a straight line that starts at the origin and has positive slope

 E. a straight line that starts at the origin and has negative slope

 F. a straight line that starts at a large positive number and has positive slope

 G. a straight line that starts at a large positive number and has negative slope

 H. a straight line that starts at a large negative number and has positive slope

 I. a straight line that starts at a large negative number and has negative slope

Answer 1