Author Question: Neglecting friction, a ball rolling along a horizontal plane will 1) accelerate indefinitely. ... (Read 45 times)

ishan · **on:** Jul 29, 2018

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.