The purpose of this graph is to describe the acceleration of a free-falling object as being either constant or changing; as being directed upward‚ downward or both (depending on some other variable); and as having a particular numerical value.This lab deals with the motion of an object falling freely (assuming negligible air friction) under the force of gravity. The position of a falling object will be measured as a function of time‚ and its acceleration will be determined from those data. In regard
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B A A C D 11. If 5m/s and 10m/s are the velocities of a body having a uniform acceleration in some time interval‚ what will be its average velocity? 12. A train travels from
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in a Plane Physics Question 4.1: State‚ for each of the following physical quantities‚ if it is a scalar or a vector: volume‚ mass‚ speed‚ acceleration‚ density‚ number of moles‚ velocity‚ angular frequency‚ displacement‚ angular velocity. Answer: Scalar: Volume‚ mass‚ speed‚ density‚ number of moles‚ angular frequency Vector: Acceleration‚ velocity‚ displacement‚ angular velocity A scalar quantity is specified by its magnitude only. It does not have any direction associated with it
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at a constant velocity when it is involved in a collision. The car comes to rest after 0.450 s with an average acceleration of 65.0 m/s2 in the direction opposite that of the car’s velocity. What was the speed‚ in km/h‚ of the car before the collision? [5] 1) 2) 3) 3) 5) 29.2 km/h 144 km/h 44.8 km/h 80.5 km/h 105 km/h 4. A car accelerates from rest at point A with constant acceleration of magnitude a and subsequently passes points B and C as shown in the figure. The distance between points B
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theory they should both strike the ground at the same time; in practice the brick will always strike the ground first. The reason is because of air resistance. As the paper falls to the ground air resistance is pushing the paper up‚ this slows the acceleration of the paper. It is known that as the velocity of an object increases the air resistance acting on the object increases. If we consider jumping out of a plane and free fall towards the Earth the F.B.D. would be as follows: Now the force
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GS104 Lab Report Experiment # 2 Data Collection David Case: January 23‚ 2015 Experiment #2 Data Collection Objectives: Exercise 1: Formulating a Hypothesis about pitching speed. To form a hypothesis for the pitching velocity of a ball. Use a spreadsheet and math to calculate the actual velocity and determine the accuracy of the hypothesis. I will also roll a large ball to measure its velocity and graph its horizontal motion. Materials: Volley
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Lesson Plan 1 What’s Physics? Unit 1 Kinematics Aim: To make an introduction to Physics‚ definitions and method. Teaching objectives I want to teach Learning Outcomes At the end of the lesson students should be able Content To introduce them to the Physics. To differentiate physical and chemical changes. To explain the scientific method. To distinguish different parts of Physics (mechanics‚ statics‚ kinematics‚ dynamics). Content To know Physics aims. To define physical
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as a function of time. A) 5.4 m/s ^ ^ B) (5.0 m/s)i - [(1.0 m/s2 )t]j 6) C) 5.1 m/s D) (5.0 m/s)i - (1.0 m/s2 )j ^ ^ E) (5.0 m/s)i - [(2.0 m/s2 )t]j 7) An object has a velocity v 0 (t) = (3.00 m/s)i + (1.00 m/s)j at time t = 0.00 s. The acceleration of the object is a (t) = (2.00 m/s3 )ti + (1.00 m/s4 )t2j. If the object is located at r 0 (t) = (1.00 m)i + (-1.00 m)j at time t = 0.00 s.‚ what is the position of the object at time t = 1.00 s? ^ ^ ^ ^ ^ ^ ^ ^ 7) A) (2.72 m)i +
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= speed of balloon‚ v. by using the equation [Answer: 12.1 ms–1] 2. A car and train moves together along two parallel paths at 25.0 ms–1. The car then undergoes a uniform acceleration of -2.5 ms–2 because of a red light and comes to rest. It remains at rest for 45.0 s‚ then accelerates back to a speed of 25 m s – 1 at a rate of +2.5 ms–2. How far behind the train is the car when it reaches the speed of 25 ms–1‚ assuming that
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Introduction to Differential Equations Course Notes for AMath 250 J. Wainwright1 Department of Applied Mathematics University of Waterloo March 9‚ 2010 1 c J. Wainwright‚ April 2003 Contents 1 First Order Differential Equations 1.1 DEs and Mechanics . . . . . . . . . . . . . . . . . . . . 1.1.1 Newton’s Second Law of Motion . . . . . . . . . 1.1.2 Dimensions of physical quantities . . . . . . . . 1.1.3 Newton’s Law of Gravitation . . . . . . . . . . 1.2 Mathematical aspects of
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