Acceleration Worksheet 3 Worked Example A cheetah running at 20 m s−1 slows down as it approaches a stream. Within 3.0s‚ its speed has reduced to 2 m s−1. Calculate the average acceleration of the cheetah. Solve the following: 1. A sports car‚ accelerating from rest‚ was timed over 400 m and was found to reach a speed of 120 km h−1 in 18.0 s. a. What was the average speed of the car in m s−1? b. Calculate the average acceleration of the car in km h−1 s−1. c. What was
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slightly lower speed than the Earth does‚ the radius of its orbit will slowly decrease‚ and it will move inward toward the Sun. This could bring the probe near the inner planets‚ Venus and Mercury. Acceleration of an Object in Uniform Circular Motion In this activity‚ you will explore the acceleration of an object that travels a circular path at constant speed. Motion of this kind is called uniform circular motion. A. The Gizmotm shows both a top view and a side view of a puck constrained by
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Manufacturing A Steps involved to building a Bottle Rocket: Materials Two 2 litter soda bottles. Cardboard pieces pre cut and measured Duct tape Scissors‚ Cutters‚ Cutting Board‚ Glue etc Foam pieces for fins Vinyl Material according to colors Cotton or any Sponge type material used for the Egg Compartment Construction To build a bottle rocket‚ there are many steps involved. It just cannot be made out of the bloom‚ but has to be thought about‚ researched and designed properly so that the result
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provide the thrust that is needed for a plane to take off and fly through the air. Most spacecraft today are propelled by forcing a gas from the back/rear of the vehicle at very high speed through a supersonic nozzle. This sort of engine is called a rocket engine. Liquid fuel propulsion systems use a fuel‚ such as liquid hydrogen‚ kerosene or alcohol and liquids such as oxygen liquids. The oxygen liquids provides the oxygen necessary to ignite and burn the fuel‚ which in turn enables a spacecraft’s
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Appendix E ROCKET THEORY Rocketry encompasses a wide range of topics‚ each of which takes many years of study to master. This chapter provides an initial foundation toward the study of rocket theory by addressing the physical laws governing motion/propulsion‚ rocket performance parameters‚ rocket propulsion techniques‚ reaction masses (propellants)‚ chemical rockets and advanced propulsion techniques. matter‚ which depends on both how much and how fast propellants are used (mass flow rate)
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History of Rockets Our time there has been an evolution in our history of rockets. It has been one man-kinds greatest invention for thousands of years. Rockets date back to 400 B.C in the city Tarentum from a roman writer named Aulus Gellius as he tells a story of a Greek‚ named Archytas. Archytas used his invention to amuse and baffle the people by flying a wooden pigeon using steam to propel the bird suspended off wires. Couple three hundred years later after the invention of Archytas flying
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Calculate the value of t when Q is due north of P. (2) (Total 8 marks) 2. A train starts from rest at a station A and moves along a straight horizontal track. For the first 10 s‚ the train moves with constant acceleration 1.2 m s–2. For the next 24 s it moves with constant acceleration 0.75 m s–2. It then moves with constant speed for T seconds. Finally it slows down with constant deceleration 3 m s–2 until it comes to rest at a station B. (a) (b) (c) Show that‚ 34 s after leaving A‚ the speed
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Engineering Period 5 Oct‚ 18 210 The rocket and recovery system Is a missile‚ spacecraft‚ aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets‚ the exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction. Rocket engines push rockets forwards simply by throwing their exhaust backwards extremely fast. Usually the rocket are propellant by chemical‚ and this rockets store a large amount of energy in an
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design and build a pop bottle rocket to fly as far as possible. Research Pop bottle rockets are used for the study of aeronautics all over north america.Water rockets are used in schools to help students understand the principles of aeronautics. The Science provides challenges of bottle rocket design and flight‚ including altitudes and distances reached. A model rocket has four components of flight to it aerodynamics‚ weight‚ thrust‚ lift and drag. Water rockets have been a source of entertainment
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7 Lab:Pop Rockets 1. List and explain two ways that you could improve the flight performance of your rocket. Your responses must consider the materials you had available to work with. The rocket I produced was a normal looking rocket compared to the group of rockets I was working with. It was medium size in length and thickness. The head of the rocket was a little wide and lose‚ and the flaps were not arrow dynamic what so ever. To improve the flight I could have made my rocket shorter and
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