SECTION II NEWTONIAN MECHANICS - PAGE 9 - Chapter 2: Kinematics Rectilinear Motion Non-linear Motion a. Define displacement‚ speed‚ velocity and acceleration. Distance: Displacement: Speed: Velocity: Total length covered irrespective of the direction of motion. Distance moved in a certain direction Distance travelled per unit time. is defined as the rate of change of displacement‚ or‚ displacement per unit time {NOT: displacement over time‚ nor‚ displacement per second‚ nor‚ rate of change
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1. If you push for an hour against a stationary wall‚ you do no work A) on the wall. B) at all. C) both of these D) none of these 1. If you push an object twice as far while applying the same force you do E) twice as much work. F) four times as much work. G) the same amount of work. 2. If you push an object just as far while applying twice the force you do H) twice as much work. I) four times as much
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Impulse and Momentum Lab Part I: As the first lab of the Physics 2 curriculum‚ our class completed a lab experiment that introduced us students to a new concept that would be a foundation to the future topics that we learn in this class. In this lab activity‚ we used a lab cart on a flat track to compare the collision of the cart with a force sensor with and without the plunger during different trials. The materials that we would need for this activity are a lab cart on a flat track‚ a timer
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effect of collisions. In your investigation explain how the technology works in terms of physics laws and theories. 1. Crumple zone The purpose of a crumple zone is to increase the amount of time it takes for a car to come to a stop after being hit by an object. Crumple zones cause the force to be spread out over a long period of time‚ reducing the impact that the passengers in the car feel. Crumple zones today are usually made of fibreglass or steel and works during a collision by turning
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conservation of momentum can be a huge effect on the cars‚ so the conservation of momentum states that when there are no other outside forces like friction the total momentum of the objects interaction does not change. The amount of momentum before and after the collision will be the same. If this is the case then the momentum of the first car‚ mass times velocity‚ does not change the momentum of the second car if the second car is at rest so the second car would have the same momentum as the first
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the ball on the ground‚ it’s hard to point out a highly accurate landing spot. Powder should be used‚ in which it can leave a mark. The measurement for the vertical displacement‚ the handmade ball catcher is suspended with light string‚ as the collision occur‚ the ball catcher starts to rotate in circular until it reaches the maximum height‚ this can increase or decrease the measurement of height and make it harder to record the precise measurement for vertical displacement. Data Table 1(kinematic
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Introduction to Mechanisms Yi Zhang with Susan Finger Stephannie Behrens Table of Contents 1 Physical Principles This chapter introduces the basic physical principles behind mechanisms as well as basic concepts and principles required for this course. 1.1 Force and Torque 1.1.1 Force Force: an agent or influence that‚ if applied to a free body results chiefly in an acceleration of the body and sometimes in elastic deformation and other effects. Every day we deal with forces
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If you push for an hour against a stationary wall‚ you do no work A) on the wall. B) at all. C) both of these D) none of these 2) If you push an object twice as far while applying the same force you do A) twice as much work. B) four times as much work. C) the same amount of work. 3) If you push an object just as far while applying twice the force you do A) twice as much
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ai Allen Breed was holding the patent (U.S. #5‚071‚161) to the only crash sensing technology available at the birth of the airbag industry. Allen Breed invented the first automobile crash sensor and airbag safety system in 1968; however‚ it took several years to perfect the system (www.inventor.about.com). General Motors was the first manufacturer to offer airbags as an option for 1975 models (www.edmunds.com). In 1986‚ Mercedes Benz was the first company to install airbags in all of its models
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1) Objective Investigate the velocity immediately after the collision. Givens SUV: 3000 kg; Accleration of SUV brake locked: 2 m/s 2 Subaru: 2000 kg; Accleration of Subaru braked locked : 3 m/s 2 The initial velocity of Subaru is 0 m/s speed limit: 35 km/hr distance traveled after collision: 22 m unknown the initial velocity after collision theory and equation Elasticity of collision Kinematics 1 a • d = V f 2 − V i 2 2 assumption the final velocity after they collide and traveled 22 m is 0
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