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3 cards from this section. Quick, good the night before a test.
What is a balanced force?
Think about forces that do not change an object's motion.
Can you give an example of unbalanced forces?
Consider motions that occur when forces are not equal.
What happens when balanced forces act on an object?
Think about how forces affect an object's stability.
True or False: Unbalanced forces can cause an object to change its speed and direction.
Consider the changes that occur when forces are not equal.
A box is at rest on a flat surface. If a force of 20 N pushes it to the right and a force of 20 N pushes it to the left, what is the net force on the box? What does this imply about its motion?
Think about how equal forces affect the state of rest.
In a game of tug-of-war, team A pulls with 450 N and team B with 350 N. Calculate the net force and state what effect this will have on the direction of the rope.
Compare the forces to see which team has the greater pull.
6 more questions in this section. Enroll free to practise them all.
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