shot‚ you are going to need to know what projectile motion is. So really‚ what is projectile motion? Projectile motion is the curved path (also known as a parabola) an object follows when thrown near the surface of the Earth. It has an initial velocity‚ but after that‚ the only force acting on the object is gravity. In order to figure out the perfect shot‚ you are going to need to know what projectile motion is. So really‚ what is projectile motion? Projectile motion is the curved path (also
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4.3 – Velocity 1. Although we use these two words interchangeably‚ what is the difference between speed and velocity? 2. What is described when a car travels 60 km/h? How could we describe its velocity? 3. In terms of scalar and vector quantities‚ how would you describe speed? Velocity? 4. What does constant speed describe? Constant velocity? 5. If the velocity changes what also must be changing? Explain. 6. What controls on a car cause a change in speed? What causes a change in velocity? 7. What
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Graphical Analysis of Motion Introduction To graphically analyze motion‚ two graphs are commonly used: Displacement vs. Time and Velocity vs. Time. These two graphs provide significant information about motion including distance/displacement‚ speed/velocity‚ and acceleration. The displacement and acceleration of a moving body can be obtained from its Velocity vs. Time graph by respectively finding the area and the slope of the graph. Data Tables – Part I Displacement (m) Time (s) 0.10 m
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percentage difference between the initial velocity calculated with kinematics and momentum are 0.0515%‚ which shows the calculation of initial velocity using the two different ways have a relatively similar answer. The percentage error between the theoretical value of initial velocity measured with photo gate and lab quest and the experimental value calculated with kinematics is 0.02473%. The percentage error between the theoretical value of initial velocity measured with photo gate and lab quest and
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does the velocity change with distance downstream? 3. How does channel efficiency change with distance downstream? Figure 1: Bradshaw Model shows the changes of river from Upstream to Downstream According to the Bradshaw Model I would expect. Discharge increases downstream because tributaries join the main river and increase amount of water in Main River. Cross-Section will increase as the river goes downstream‚ channel depth and width of the river increases due to abrasion. Velocity will
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moving has momentum. Momentum is equal to the objects mass times its velocity. Momentum is conserved‚ which means that “momentum before an event equals momentum immediately after‚ or pi=pf”. Since pi=pf‚ then pai+ pbi = paf+ pbf and (ma* vai)+ (mb* vbi)= (ma* vaf) + (mb * vbf). Having velocity simply means that an object has a speed and direction. Using the formula “(ma * vai) + (mb * vbi) = (ma* vaf) + (mb * vbf‚)” the final velocity of two carts after they collide can be found. The first cart is
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introductory height of two meters would be far too great causing the egg to break. Therefore‚ lab participants needed to find a way to either elongate the duration of the impact‚ or find a way to slow down the egg’s normal final velocity when it strikes the ground. Velocity is described as‚ “the displacement divided by the time interval during which the displacement occurred” (Serway & Faughn‚ 2002‚ p. 43). Prior to the trials at the set heights‚ there seemed to be multiple structural designs
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Multiple Choice Question 6.31 A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is 3000 N 5000 N 2000 N ***(answer) 1000 N 4000 N Force = mass x acceleration. Acceleration = velocity/time = -10/5 = -2 m/s/s. (- sign means a deceleration from velocity of 10 to 0) Force = 1000 x -2 = -2000 Newtons (i.e. 2000N in opposite direction to motion) Multiple Choice Question 6.11 When you jump from an elevated position you usually bend your knees upon reaching the
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collisions. This background knowledge is essential in understanding the experiment‚ resulting calculations‚ and analysis. The main objective of this experiment was to determine the initial velocity of a ball shot from a spring loaded gun‚ into a receptacle which traveled up a ramp. As well as finding the initial velocity of the ball we also wanted to determine the spring constant of the spring used in the spring loaded gun. Lastly‚ we wanted to analyze what speed would theoretically be reached if no
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car starting from rest‚ accelerates for 15.0 min until it’s velocity is 20 m/s. It then moves at constant velocity for another 20.0 min before it slow down and finally stopped in another 10.0 min. Find (a) acceleration during the first 15 min‚ (b) the deceleration during the last 10 min of its motion‚ (c) the distance traveled during the last minute‚ and the (d) total displacement. (e) Draw the displacement versus time graph and velocity versus time graph for the motion of the car. Given:
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