1. The document describes 10 physics problems involving forces, motion, and energy. 2. The problems cover topics like calculating acceleration, determining time and distance with given velocities, and applying concepts like Newton's laws of motion and conservation of energy. 3. Diagrams, equations, and calculations are provided to demonstrate how to set up and solve each problem step-by-step.

1. 1
1 F F F
2 F F F 5 F F 1 F 1 F F
F
- F F F F F
- F F F F F
- F F F F F
- F F F ˈ F F F 1 F
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2
1. F F F 4 / F 80 F F
F F F
2. F 28 F F FF F F
4 F 2 F 2.5
3. F 12 F F F 3
F ˈ F F 4
4. FA FB F F 3 1.8 F( )2
F 6 FA F F FB
5. F F F 4.9 F F F g = 9.8
m/s2
6. F 15 F ( F g = 10 m/s2 ) F
F
7. F F F 40 F F
F F 12 ( F g = 10 m/s2 )
8. F 10 F F F F
F 3 F F F F
9. F F 5 F 10 /
F F F F
10. F F F 20 / F F
10 / F F
ˈ F

2. 2
1. F F F 5 F F
- F F ˈ
- F F F F F
- F F F F F
- F F F F F ( F F
F F )
- F F F ˈ F F F 1 F
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