1. MR G’s Water Rocket experiment

2. 3. Maximum
Gravitational
Potential energy
2. Maximum
Kinetic
energy
1. Maximum
Strain Potential
energy
4. Maximum
Kinetic
energy

3. “ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s

4. Momentum of exhaust = Momentum of Rocket
“ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s
Momentum of exhaust = Momentum of Rocket

5. Momentum of exhaust = Momentum of Rocket
“ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s
Momentum of exhaust = Momentum of Rocket
Mass of water x velocity of water = Mass of Rocket x velocity of Rocket

6. Momentum of exhaust = Momentum of Rocket
“ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s
Momentum of exhaust = Momentum of Rocket
Mass of water x velocity of water = Mass of Rocket x velocity of Rocket
0.5 Kg x 5 m/s = Kg x VR

7. Momentum of exhaust = Momentum of Rocket
“ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s
Momentum of exhaust = Momentum of Rocket
Mass of water x velocity of water = Mass of Rocket x velocity of Rocket
0.5 Kg x 5 m/s = Kg x VR
0.5 Kg x 5 m/s = VR
0.10

8. Momentum of exhaust = Momentum of Rocket
“ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s
Momentum of exhaust = Momentum of Rocket
Mass of water x velocity of water = Mass of Rocket x velocity of Rocket
0.5 Kg x 5 m/s = Kg x VR
0.5 Kg x 5 m/s = VR
0.10
VR = 25 m/s

9. Momentum of exhaust = Momentum of Rocket
“ROCKET SCIENCE”
100g Rocket
500g water
? m/s
5 m/s
Momentum of exhaust = Momentum of Rocket
Mass of water x velocity of water = Mass of Rocket x velocity of Rocket
0.5 Kg x 5 m/s = Kg x VR
0.5 Kg x 5 m/s = VR
0.10
VR = 25 m/s
= 56 mph

10. “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
uR = 25 m/s

11. “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s

12. “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a

13. “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a
t = – = 2.5 sec
-10

14. “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a
t = – = 2.5 sec
-10
Velocity
m/s
time/s

15. “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a
t = – = 2.5 sec
-10
Velocity
m/s
25 m/s
2.5 s
time/s

16. Area = distance travelled = 2.5 x 25
“ROCKET SCIENCE”
V = 0 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a
t = – = 2.5 sec
-10
Velocity
m/s
25 m/s
Area = distance travelled = x 25 2
2.5 s
time/s

17. Area = distance travelled = 2.5 x 25
“ROCKET SCIENCE”
V = 0 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a
t = – = 2.5 sec
-10
Velocity
m/s
25 m/s
Area = distance travelled = x 25 2
2.5 s
time/s

18. Area = distance travelled = 2.5 x 25
“ROCKET SCIENCE”
V = 0 m/s
Maximum height ?
( ignore drag forces)
a = - 10 m/s/s
a = v – u t
uR = 25 m/s
Flight time: t = v – u a
t = – = 2.5 sec
-10
Velocity
m/s
25 m/s
Area = distance travelled = x 25 2
Maximum height reached = m
2.5 s
time/s