In 1686 Sir Isaac Newton developed three laws of motion. These laws are involved in every single football play. Whether it is a kickoff‚ pass‚ run‚ or extra point inertia‚ force‚ acceleration‚ momentum‚ and impulse are involved. Newton’s first law is the law of inertia and it states a body continues in its state of rest or of uniform motion unless an unbalanced force acts upon it. Some actions effected by this law are a quarterback throwing a football‚ a running back or receiver running for a touchdown
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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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Exercise 1: Rectilinear Motion Background The average accelerations of a US Navy fighter jet takeoff to an US Air Force fighter jet takeoff are very different. The aircraft conditions are the same except the Air Force fighter is on a 12‚000-ft dry concrete runway and the Navy fighter is on the catapult of an aircraft carrier. (Hint: You will have to use two different methods because you are not given the catapult force‚ but you have the catapult distance. Assume aircraft is airborne after the catapult
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Investigation.. PLos One‚ 6(4)‚ 1-8. Sporre‚ D. (2011). Percieving the Arts (10th ed.). Upper Saddle River‚ NJ: Prentice Hall. Trandafir‚ R. (2010). Time and Music. Philobiblon: Transylvanian Journal of Multidisciplinary Research in Humanities‚ 15(1)‚ 63-91.
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ACTIVITY: THE CAT’S MEOW / MILK CO-MOTION PURPOSE: To observe the interaction of detergent with the fat of the milk and food color 1. Provide a possible explanation of phenomenon you observed based on the result of your experiment. When food color is added to milk‚ it floats because it is less dense than milk. The non-polar fat in the milk prevents the food color from spreading‚ as it cannot participate in hydrogen bonding with water. When detergent is added to milk and the food color‚ the
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EXERCISE 8 - Rotational Dynamics‚ Equilibrium of rigid body 1. If the torque required to loosen a nut that is holding a flat tire in place on a car has a magnitude of 40.0 N m‚ what minimum force must be exerted by the mechanic at the end of a 30.0-cm lug wrench to accomplish the task? 133 N 2. A steel band exerts a horizontal force of 80.0 N on a tooth at point B in Figure 1. What is the torque on the root of the tooth about point A? 0.64 Nm 3. Calculate the net torque (magnitude and
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Adv. Physics – Unit 1 Homework Linear Motion (Ch. 2 & 3) Essential Questions: 1) How would you describe constant and accelerated motions? 2) How is motion represented graphically and analytically? 3) How does an x vs. t graph differ between constant and accelerated motions? P. 52-53 #46‚ 48‚ 50‚ 53 P. 80-83 #58‚ 59‚ 87‚ 89‚ 98‚ 106 If I don’t give the answer‚ you will have to determine it yourself. SHOW YOUR WORK! P. 52 50) 1.5x1011 m 53) 1.8 min P. 80 87) a. 75 m b. 150
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How Sugar Affects the Body in Motion By GRETCHEN REYNOLDS Gary John Norman/Getty Images Sugar is getting a bad reputation. A cover article in The New York Times Magazine several weeks ago persuasively reported that our national overindulgence in fructose and other sugars is driving the epidemics of obesity‚ diabetes and other illnesses. But that much-discussed article‚ by the writer Gary Taubes‚ focused on how sugars like fructose affect the body in general. It had little opportunity to examine
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How does the mass of a ball affect the distance it will travel ? Exploring Newtons 2nd Law of motion. Background Research How does changing the mass of an object effect how far it will travel ? This question can be answered by Newtons 2nd law of motion; Force equals mass multiplied acceleration (F= ma). This law states that a force on an object will cause it to accelerate in the direction of the force. The greater the force exerted on the object‚ the greater the acceleration. But how does
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primarily about Newton’s second law of motion. Newton’s second law of motion states that a net force is required for a body to have acceleration. If a net force is applied on an object‚ then the object will accelerate with respect to the direction of the said force. The body’s acceleration is directly proportional to the net force and inversely proportional to its mass. The experiment conducted was used to verify the relationships specified in Newton’s second law of motion. There were 3 trials‚ and these
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