1. Two ships P and Q are moving along straight lines with constant velocities. Initially P is at a point O and the position vector of Q relative to O is (6i + 12j) km‚ where i and j are unit vectors directed due east and due north respectively. The ship P is moving with velocity 10j km h–1 and Q is moving with velocity (−8i + 6j) km h−1. At time t hours the position vectors of P and Q relative to O are p km and q km respectively. (a) (b) (c) Find p and q in terms of t. (3) Calculate the distance
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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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www.kmph.matrik.edu.my CHAPTER 2: Kinematics of linear motion (5 hours) 1 2.0 Kinematics of Linear motion is defined as the studies of motion of an objects without considering the effects that produce the motion. There are two types of motion: Linear or straight line motion (1-D) with constant (uniform) velocity with constant (uniform) acceleration‚ e.g. free fall motion Projectile motion (2-D) x-component (horizontal) y-component (vertical) 2 Learning Outcome:
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The difference’s between high and low velocity pitchers In my paper I plan to explain the difference between a high velocity pitcher and a low velocity pitcher. Confidence‚ resiliency‚ determination‚ leadership‚ integrity‚ composure and location. All of these words are the best qualities of a pitcher. Pitchers are generals on the bump‚ commanders of the field (All terms for a pitcher on the mound). The team is reflected by their pitcher. There are 2 types of
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“Discuss the key differences between ‘individual racism’ and ‘institutional racism’. Give examples to illustrate your argument”. The Oxford English Dictionary describes racism as “prejudice‚ discrimination‚ or antagonism directed against a group or individual of a different race based on the belief that one’s own race is superior”. It is significant when concerning oneself with the discussion of racism that a clear and concise distinction is made between the two different types of racism. Firstly
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in Lesson 1 is acceleration. An often confused quantity‚ acceleration has a meaning much different than the meaning associated with it by sports announcers and other individuals. The definition of acceleration is: Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity. Sports announcers will occasionally say that a person is accelerating if he/she is moving fast. Yet acceleration has nothing
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ACCELERATION: Good afternoon everyone! Our group will discuss about acceleration. But before that‚ what is acceleration? Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity. People will occasionally say that a person is accelerating if he/she is moving fast. Yet acceleration has nothing to do with going fast. A person can be moving very fast and still not be accelerating. Acceleration
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Acceleration from Gravity on an Incline I. Introduction: Acceleration is the rate of change of the velocity of a moving body. Galileo was the first person to actually experiment and examine the concept of acceleration back in the seventeenth century. Acceleration can be determined by calculating the gravity and an incline. An incline is slope that is deviated between horizontal and vertical positions. Gravity is the natural force of attraction towards the center of the earth. Because of this
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⃑= (v_i ) ⃑t+ 1/2 a ⃑t^2 and F_net=ma ⃑ . The accepted value of acceleration due to gravity is . In this activity‚ an air-cart’s motion will be graphically analyzed. A mass will be attached to the air-cart by a string and hung over pulley with the other end attached to an air-cart resting on a frictionless surface. The study of the motion of the system of masses will be used to determine the velocity of the masses from an analysis of the displacement versus time data. This velocity will then be
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policy gave them what they wanted. In the 1930s‚ the Axis Powers often demand for lands and Britain and France often appeased them and did not take any actions. This result in making the Axis Powers more aggressive. There were several examples of Appeasement Policy between Britain and France in the 1930s. One of the most representative ones was the German occupation of Czechoslovakia. As there were a large population of German living in Sudetenland in the western part of Czechoslovakia‚ and Sudetenland
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