Report

MR G’s Water Rocket experiment 3. Maximum Gravitational Potential energy 2. Maximum Kinetic energy 1. Maximum Strain Potential energy 4. Maximum Kinetic energy “ROCKET SCIENCE” 500g water 5 m/s 100g Rocket ? m/s “ROCKET SCIENCE” 100g Rocket 500g water ? m/s 5 m/s Momentum of exhaust = Momentum of Rocket “ROCKET SCIENCE” 100g Rocket 500g water ? m/s 5 m/s Momentum of exhaust Mass of water x velocity of water = = Momentum of Rocket Mass of Rocket x velocity of Rocket “ROCKET SCIENCE” 100g Rocket 500g water ? m/s 5 m/s Momentum of exhaust Mass of water x velocity of water 0.5 Kg x 5 m/s = = = Momentum of Rocket Mass of Rocket x velocity of Rocket 0.10 Kg x VR “ROCKET SCIENCE” 100g Rocket 500g water ? m/s 5 m/s Momentum of exhaust Mass of water x velocity of water 0.5 Kg x 5 m/s = Momentum of Rocket = = 0.5 Kg x 5 m/s = 0.10 Mass of Rocket x velocity of Rocket 0.10 Kg x VR VR “ROCKET SCIENCE” 100g Rocket 500g water ? m/s 5 m/s Momentum of exhaust Mass of water x velocity of water 0.5 Kg x 5 m/s = Momentum of Rocket = = 0.5 Kg x 5 m/s = 0.10 Mass of Rocket x velocity of Rocket 0.10 Kg x VR VR VR = 25 m/s “ROCKET SCIENCE” 100g Rocket 500g water ? m/s 5 m/s Momentum of exhaust Mass of water x velocity of water 0.5 Kg x 5 m/s = Momentum of Rocket = = 0.5 Kg x 5 m/s = 0.10 Mass of Rocket x velocity of Rocket 0.10 Kg x VR VR VR = 25 m/s = 56 mph “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s uR = 25 m/s Maximum height ? ( ignore drag forces) “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s Maximum height ? ( ignore drag forces) a = uR = 25 m/s v–u t “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s Maximum height ? ( ignore drag forces) a = v–u t t = v–u a uR = 25 m/s Flight time: “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s Maximum height ? ( ignore drag forces) a = v–u t t = v–u a uR = 25 m/s Flight time: t = 0 – 25 -10 = 2.5 sec “ROCKET SCIENCE” V = 0 m/s a = - 10 m/s/s Maximum height ? ( ignore drag forces) a = v–u t t = v–u a uR = 25 m/s Flight time: Velocity m/s time/s t = 0 – 25 -10 = 2.5 sec “ROCKET SCIENCE” V = 0 m/s Maximum height ? ( ignore drag forces) a = - 10 m/s/s a = v–u t t = v–u a uR = 25 m/s Flight time: Velocity m/s 25 m/s 2.5 s time/s t = 0 – 25 -10 = 2.5 sec “ROCKET SCIENCE” V = 0 m/s Maximum height ? ( ignore drag forces) a = - 10 m/s/s a = v–u t t = v–u a uR = 25 m/s Flight time: t = 0 – 25 -10 = 2.5 sec Velocity m/s 25 m/s Area = distance travelled = 2.5 x 25 2 2.5 s time/s “ROCKET SCIENCE” V = 0 m/s Maximum height ? ( ignore drag forces) a = - 10 m/s/s a = v–u t t = v–u a uR = 25 m/s Flight time: t = 0 – 25 -10 = 2.5 sec Velocity m/s 25 m/s Area = distance travelled = 2.5 x 25 2 2.5 s time/s “ROCKET SCIENCE” V = 0 m/s Maximum height ? ( ignore drag forces) a = - 10 m/s/s a = v–u t t = v–u a uR = 25 m/s Flight time: t = 0 – 25 -10 = 2.5 sec Velocity m/s 25 m/s Area = distance travelled = 2.5 x 25 2 Maximum height reached = 31.25 m 2.5 s time/s