Subjective Srivastava’s Srivastava’s MOTION IN ONE DIMENSION 1. A particle is projected vertically upwards with a velocity 20 m s1 from the top of the tower of height 100 m. Determine the time it takes to reach the ground. Answer: t 2 1 6 sec. A particle is dropped from the top of the tower of height h. At the same instant another particle is projected vertically upwards from the bottom of the tower with such a velocity that it will be able to just reach the top of the tower. When and at what
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with a constant acceleration‚ reaching a height of 63 m in 8 s. * Speed at height 63 - 2x63/8 = answer What is the acceleration= answer/8 * If you were to drop a rock from a tall building‚ assuming that it had not yet hit the ground‚ and neglecting air resistance‚ after 5.5 s; * How fast? 5.5x10 * How far? Half gravity = 5x5.5^2 * A 1200 kg racing car accelerates from rest at a constant rate and covers a distance of 400 m in 10 s. What is the car’s acceleration? (in m/s2) 400/10
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bounces back up ALMOST to its initial height. A motion detector is mounted on the ceiling directly above the ball‚ facing down. So‚ the positive direction -- the away-from-the-detector direction -- is downward. Draw the position‚ velocity‚ and acceleration graphs. Since moving downward is a positive direction‚ is the velocity positive when the ball falls‚ 0 when it hits the ground‚ and then negative when it moves up? Is the accerlation positive (9.8) as the ball falls‚ very positive when it hits
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The average acceleration‚ a = ᐃv/ ᐃt‚ is in the same direction as ᐃv‚ that is‚ toward the center of the circle. As the object moves around the circle‚ the direction of the acceleration vector changes‚ but its length remains the same.One should take note of the fact that the acceleration vector of an object in uniform circular motion always points in toward the center of the circle. Due to this fact‚ the acceleration of such an object is called center- seeking or centripetal acceleration. Remember
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Acceleration of a Ball Bearing on an Inclined Plane Group 3 Block 3 Annie Nguyen‚ Cal Malone‚ Amanda Robotham Purpose of Lab: The purpose of this lab is to understand the motion of a ball bearing on an inclined plane through the graphical relationship between displacement and time. The independent variable in this lab was the displacement change of the ball bearing in meters and the dependent variable was the time in seconds. The control variables in the experiment was the ramp angle
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2: SPEED‚ VELOCITY AND ACCELERATION 2.1 Distance and Displacement • Distance is the total length covered by a moving object irrespective of the direction of motion‚ i.e. only the magnitude is of importance. • Displacement is the distance measured in straight line AND in a specific d__________________. Both magnitude and d_________________ are important. Example 1 A car travels 5 km due east and makes a U-turn back to travel a further distance of 3 km. Find (a) the distance covered‚ (b)
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In this equation‚ g represent gravity which has the value of 980 cm/s^2. After calculating the acceleration‚ the photogate can be used to find the experimental acceleration. To do this‚ turn on the smart timer and press the red touchpad key. Press the red touchpad key until acceleration is selected. Furthermore‚ press the blue key to select one gate‚ and the black one to establish readiness. After the appropriate settings have been selected
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relationship between air resistance and acceleration of an object during free fall.To calculate the acceleration you will use the following formula: 2 delta x/ t^2 In this lab you will drop coffee filters from a height of one meter. You will measure their acceleration by measuring the vertical distance and the time that coffee filters take in traveling that distance. Objectives After completing this lab‚ you will be able to: 1. calculate the acceleration of falling object and discuss the effect
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Question: 1. Which person(s) changes direction during the time of motion? 2. Which person(s) is/are not moving? 3. Which person has the greatest average speed? 4. Which person(s) has/have a constant‚ positive acceleration value? 5. Which person has the greatest magnitude of acceleration? 1. C 2. none 3. E 4. D reason: lets say initial vel = -100‚ and final velocity = -50 -> a = vf – vi/t = -50 – (-100) = +50/t 5. C (largest change in velocity) EXAMPLE
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Free-Fall Acceleration Laboratory Help Sheet * Design an experiment :-UNIT 2 Lesson 3 page 1 * Hypotheses UNIT 2 Lesson 3 page 2 How do you think the free fall acceleration will be different on Earth‚ Moon and Mars and why? * Data collection and organization. UNIT 2 Lesson 3 page 3‚4 EARTH Time (s) | 0 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 | Distance (m) | 0 | x | | | | | Average Velocity m/s | 0 | A | B | | | | Acceleration m/s/s | 0 | | C | | | | Example
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