The potential dangers of loose objects in vehicles are strongly associated with Newton’s First Law of Motion‚ inertia. Inertia is when an object in motion tries to stay in motion‚ and an object at rest tries to remain at rest‚ unless the object is acted upon by an outside force. For example‚ say a car is traveling along a straight road. Loose objects in the auto are "acted upon" by the body‚ seats‚ or some other part of the vehicle (whatever is touching a loose object)‚ whenever the whole thing
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HOMEWORK PROBLEMS Chapter 4: THE LAWS OF MOTION PART-A: Hand in your answers in class on scantron on Wednesday 22 September-2010. The questions have been numbered so you can use the back side of an older scantron. Write your name‚ class (1401) and HW # 4 on the scantron. 1. A horizontal force of 95.0 N is applied to a 60.0-kg crate on a rough‚ level surface. If the crate accelerates at 1.20 m/s2‚ what is the magnitude of the force of kinetic friction acting on the crate? (a) 23.0 N (b) 45.0 N
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Dynamics describes the relationship between force and motion. Force? What is it? Put in simple terms‚ a force is a push or a pull. It pertains to any influence that causes a change in an object’s state of motion. • Contact Force A contact force is produced when there is direct contact between two interacting bodies. • Long-Range Force A long-range force is produced when one body influences the state of motion of another body even if these two bodies are separated by empty space. • Concurrent Forces
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VET Sport and Recreation Units 3/4 Conduct basic Warm up and Cool down Rosie Howard => Warm up Benefits Increase body and muscle temperature Increase blood and oxygen supply Increase flexibility Increase excitement levels Increase proprioception A Warm up should: Consist of a series of exercises and stretching 10-15 mins duration Build from low to higher intensity Consist of three components: 1. Low intensity activity such as a short jog 2. Stretching (static/ dynamic/ pnf) 3. Sport specific
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Kathryn Marchessault Physics Lab LR Tuesday 8-9:55 Due 02/26/15 Experiment #1 Free Fall Experiment Abstract In this experiment we studied the motion of an object in free fall‚ that is an object being dropped from a certain height to Earth’s surface. In this experiment we tested the idea that no matter what the size‚ shape‚ color‚ etc. of the object if it would still experience the same constant acceleration throughout its fall (short distance). The constant downward acceleration it experiences
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Title Experiment with a spiral spring (Oscillation) Objective 1. To show how the time of vertical oscillation depends on the load 2. To determine the spring constant 3. To determine the effective mass of the spring Introduction In this experiment‚ it is to show how the time of vertical oscillation depends on the load‚ to determine the spring constant and to determine the effective mass of the spring. An ideal spring is remarkable in the sense that
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ENERGY SYSTEMS Figure 1 shows a sprint cycle race. This activity involves cycling four laps of a 250 metre track‚ with the final lap being completed as fast as possible. Elite performers cover the final lap in times of between 10 and 11 seconds. (a) Name the main energy system being used in the final sprint to the finishing line and explain how this system provides energy for the working muscles. (4 marks) (b) At the end of the race‚ the cyclist will be out of breath and will continue to breathe
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Module 3: Natural Forces Affecting the Driver Vocabulary: Please define six (6) of the following terms in your own words. Please do not just copy and paste the definition. 1. Gravity-the force of attraction a bigger object has with a smaller object 2. Inertia-an object at rest will most likely stay at rest‚ while an object at motion will most likely stay at motion 3. Potential Energy-the energy an object has stored depending on how high the object is from the ground 4. Kinetic Energy-The energy an
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2015 JC2 H2 Physics June Revision Package Measurement Techniques J02/P2/Q1 1. Make reasonable estimates of the following quantities. (a) mass of an apple [1] (b) number of joules of energy in 1 kilowatt-hour [1] (c) wavelength of red light in a vacuum [1] (d) pressure due to a depth of 10 m of water [1] J02/P2/Q2 2. A student uses a micrometer screw gauge to measure the diameter of a wire. He fails to notice that‚ with the gauge fully closed‚ the reading is not zero. (a) State and explain
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A seatbetl is a strap or belt that secures a person in a car to prevent injury. A seatbelt contains a spring and spool‚ that work together to keep the belt snug while alowing movement‚ and a lock mechanism that is activated when a car stops or slows abrubtly‚ like in the event of a crash. The job of a seatbelt is to stop you with the car‚ without a seatbelt you would keep moving until acted upon by another force even though the car stopped. When the car stops abruptly‚ the seatbelt can extend the
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