1. Do forces need to be equal in magnitude and opposite in direction to be balanced?
20 N
20 N

2. How can the forces on an object be balanced if their magnitudes are not equal?
20 N
20 N
10 N
10 N
20 N

3. How can the forces on an object be balanced if they have equal magnitudes but directions that are
not opposite?
F = 20 N
20 N
F = 20 N
20 N
F = 20 N

4. Are these forces balanced?
20 N
20 N
120 °
120 °
120 °
20 N

7. Which direction is this box moving?

8. Calculate the force acting on this box.
m = 5 kg
a = 2 m/s2
F = ? = 10 N

9. Calculate the acceleration of this box.
m = 5 kg
F = 20 N
a = ? = 4 m/s2

10. Calculate the mass of this box.
F=5N
a = 2 m/s2
m = ? = 2.5 kg