Asked by E

According to Newton's Second Law of Motion, in which of these situation is the object accelerating.

A) A book on a shelf
B) A rock hitting the ground
C) a helium balloon tied to a lamp post
D) a ball that has been thrown upward
Answered by oobleck
which choice describes something that is actually moving?
Answered by Anonymous
Which one is it
Answered by Caro
is it c?