1. A 0.8 kg stone in a vertical circle of radius 2 m has a speed of 12 m/s at the bottom. What is the tension at the top? (Take g = 10 m/s²)

2. 2. A 50 kg man in a lift descending at 4 m/s jumps upward with a speed of 5 m/s relative to the lift. What is the normal force on the floor during the jump? (Take g = 10 m/s²)

3. 3. A 9.2 kg block on a horizontal surface (μk = 0.2) is pulled by a 7.2 kg mass over a pulley. A 20 N force opposes the 9.2 kg block. What is the tension? (Take g = 10 m/s²)

4. 4. A body of mass 6 kg is acted upon by two perpendicular forces of 8 N and 6 N. What is the magnitude of its acceleration?

5. 5. A 0.48 kg stone in a vertical circle of radius 1.5 m has a tension of 32 N at the bottom. What is the tension at the top? (Take g = 10 m/s²)

6. 6. A 1700 kg truck accelerates at 1.5 m/s² for 4s, then a 1.8 kg stone is dropped. What is the horizontal distance traveled by the stone in 2.5 s? (Neglect air resistance)

7. 7. A 0.34 kg stone is whirled in a horizontal circle of radius 1.8 m at 42 rev/min. What is the tension? (Take g = 10 m/s²)

8. 8. A car of mass 1200 kg takes a turn of radius 50 m on a banked road at 15°. What is the optimum speed to avoid friction? (Take g = 10 m/s², tan 15° ≈ 0.268)

9. 9. A 65 kg man in a lift accelerating upward at 2.5 m/s² stands on a scale. What is the reading? (Take g = 10 m/s²)

10. 10. A 6 kg block on a 53° incline (μk = 0.2) is pulled down by a 4 kg mass over a pulley with a 15 N force opposing the 6 kg block. What is the acceleration? (Take g = 10 m/s², sin 53° = 0.8, cos 53° = 0.6)

11. 11. A stone of mass 0.2 kg is dropped from a height. What is the net force acting on it during its downward motion? (Take g = 10 m/s², ignore air resistance)

12. 12. A 6.2 kg block on a horizontal surface (μk = 0.2) is pulled by a 4.2 kg mass over a pulley. A 13 N force aids the 6.2 kg block. What is the tension? (Take g = 10 m/s²)

13. 12. A 6.2 kg block on a horizontal surface (μk = 0.2) is pulled by a 4.2 kg mass over a pulley. A 13 N force aids the 6.2 kg block. What is the tension? (Take g = 10 m/s²)

14. 14. A 0.25 kg ball at 36 m/s hits a wall at 60° and rebounds at 45° with speed 30 m/s. What is the impulse perpendicular to the wall? (Take sin 60° = 0.866, cos 60° = 0.5, sin 45° = cos 45° = 0.707)

15. 15. A 70 kg man in a lift accelerating downward at 3 m/s² pushes a 15 kg box upward with 50 N. What is the normal force on the floor? (Take g = 10 m/s²)