# Kinetic Energy calculations

## Stage 1

Calculate the energy transferred to the kinetic store for the following:

1. A 50 kg object with a velocity of 3 m/s.

2. A ball thrown with a mass of 0.6 kg travels 17 m/s.

3. A cyclist with a mass of 80 kg travelling at 11 m/s.

4. A car travelling with a velocity of 15 m/s and a mass of 2500 kg.

5. A 19 kg object travelling at 9 m/s.

## Stage 2

6. Find the velocity of a 1800 kg car with 1822500 J of energy in its kinetic store.

7. Find the mass of a ball with a 11 m/s velocity and 60.5 J of energy in its kinetic store.

8. Find the velocity of a ball with a 1.4 kg mass and 44.8 J of energy in its kinetic store.

9. Find the mass of a cyclist with 1260 J of energy in their kinetic store travelling at 6 m/s.

10. Find the velocity of a runner with a mass of 80 kg and 2131.6 J of energy in their kinetic store.

## Stage 3

11. Find the velocity of a ball with 1.8 J of energy in its kinetic store and a mass of 0.9 kg.

12. Find the mass of a runner travelling at 9.4 m/s with 3.9762 kJ of energy in their kinetic store.

13. Find the velocity of a runner with a mass of 90 kg and 0.00043245 MJ of energy in their kinetic store.

14. Find the mass of a ball with 102.85 J of energy in its kinetic store moving at 11 m/s.

15. Find the velocity of a 1500 g ball with 300 J of energy in its kinetic store.

1. 225 J

2. 86.7 J

3. 4840 J

4. 281250 J

5. 769.5 J

6. 45 m/s

7. 1 kg

8. 8 m/s

9. 70 kg

10. 7.3 m/s

11. 2 m/s

12. 90 kg

13. 3.1 m/s

14. 1.7 kg

15. 20 m/s