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Kick the Ball! Forces at Play
adj. unstable or uneven; not in a state of balance
When the net force is not zero, the forces are unbalanced.
unbalanced
Unbalanced forces cause changes in a ball’s motion in two
ways. If unbalanced forces push or pull a static ball, it will
static
adj. staying in one place without moving; not changing for a long time
move toward the net force. Unbalanced forces can change
the speed or direction of a ball that is already in motion.
Unit 7 | Kick the Ball! Forces at Play
