Neglecting friction, a ball rolling along a horizontal plane will ...

[ishan]

Neglecting friction, a ball rolling along a horizontal plane will
 
  1) accelerate indefinitely.
  2) roll until the force used to roll it was used up.
  3) roll indefinitely at a constant speed.
 
  This illustrates
  4) the basic principle that a body requires a push or pull to keep it moving.
  5) inertia.
  6) the law of net force.

Question 2

To say that an object is moving at constant velocity means that it is
 
  1) at rest,
  2) moving at an unchanging speed,
  3) moving at an unchanging speed in a straight-line path,
 
  and that its acceleration is
  4) zero.
  5) constantly increasing (or decreasing).
  6) uniform.

[Pamela.irrgang@yahoo.com]

Answer to Question 1

Answer: 3, 5

Answer to Question 2

Answer: 3, 4

[ishan]

Excellent

[kjohnson]

Gracias!