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Joey wonders why the horizontal component of velocity remains constant, and asks Meixiu the reason. Which of Meixiu's responses is correct? O "For a baseball with no air resistance, there is no acceleration in the horizontal direction, so the baseball moves to the right at a constant rate."

Joey wonders why the horizontal component of velocity remains constant, and asks Meixiu the reason. Which of Meixiu's responses is correct? O "For a baseball with no air resistance, there is no acceleration in the horizontal direction, so the baseball moves to the right at a constant rate."

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Prelecture Exploration: Veleity Components in Projectile Modion Meixiu is at the park with her friend Joey from physics class. They want to understand projectile motion, so they are using a pitching machine to launch baseballs, and observe the baseball's trajectories for different scenarios. Later, they use this simulation to help them understand what they observed. In this simulation, the friends can observe the parabolic path of a projectile launched from the origin. The velocity vector, as well as its horizontal and vertical components, is shown at all points along the path. They can use the sliders to adjust the initial speed and launch angle of the projectile, then click "fire" to launch. They note that in this simulation, air resistance is ignored, although in reality air resistance does play a role in a projectile's motion. Initial Speed 40 y tm) 45 40 35 30 25 20 15 10 - (m) Launch Angle 5e degres 75 60 45 30 15 Time fire paae cam Click here to open the simulation in a new window. Part 1 of 11 - Horizontal and Vertical Components of the Velocity Vector Meixiu asks Joey to describe the horizontal and vertical components of the velocity vector along the baseball's path. Which of Joey's responses is correct? "The x component remains constant." O The x component equals the initial y component, and the y component equals the initial x component." O The final y component is equal to the initial y component in magnitude and direction." O "Just before the baseball hits the ground, both components are equal in magnitude and opposite in direction to their initial values." Joay in correct. He has noticed that the initial velocity vector in the hartzontal direction is the same length and pointa In the same direction throughout the fight. Part 2 of 11 - Horizontal and Vertioal Components of the Valoeity Vector Joey wonders why the horizontal component of velocity remains constant, and asks Meixiu the reason. Which of Meixiu's responses is correct? O "For a baseball with no air resistance, there is no acceleration in the horizontal direction, so the baseball moves to the right at a constant rate." O "For a baseball with no air resistance, the only horizontal acceleration is the gravitational acceleration, so the baseball moves to the right at a constant rate." O "The acceleration due to gravity is exactly offset by the acceleration due to air resistance." O The baseball has constant acceleration acting on it in the horizontal direction."
Transcribed Image Text:Prelecture Exploration: Veleity Components in Projectile Modion Meixiu is at the park with her friend Joey from physics class. They want to understand projectile motion, so they are using a pitching machine to launch baseballs, and observe the baseball's trajectories for different scenarios. Later, they use this simulation to help them understand what they observed. In this simulation, the friends can observe the parabolic path of a projectile launched from the origin. The velocity vector, as well as its horizontal and vertical components, is shown at all points along the path. They can use the sliders to adjust the initial speed and launch angle of the projectile, then click "fire" to launch. They note that in this simulation, air resistance is ignored, although in reality air resistance does play a role in a projectile's motion. Initial Speed 40 y tm) 45 40 35 30 25 20 15 10 - (m) Launch Angle 5e degres 75 60 45 30 15 Time fire paae cam Click here to open the simulation in a new window. Part 1 of 11 - Horizontal and Vertical Components of the Velocity Vector Meixiu asks Joey to describe the horizontal and vertical components of the velocity vector along the baseball's path. Which of Joey's responses is correct? "The x component remains constant." O The x component equals the initial y component, and the y component equals the initial x component." O The final y component is equal to the initial y component in magnitude and direction." O "Just before the baseball hits the ground, both components are equal in magnitude and opposite in direction to their initial values." Joay in correct. He has noticed that the initial velocity vector in the hartzontal direction is the same length and pointa In the same direction throughout the fight. Part 2 of 11 - Horizontal and Vertioal Components of the Valoeity Vector Joey wonders why the horizontal component of velocity remains constant, and asks Meixiu the reason. Which of Meixiu's responses is correct? O "For a baseball with no air resistance, there is no acceleration in the horizontal direction, so the baseball moves to the right at a constant rate." O "For a baseball with no air resistance, the only horizontal acceleration is the gravitational acceleration, so the baseball moves to the right at a constant rate." O "The acceleration due to gravity is exactly offset by the acceleration due to air resistance." O The baseball has constant acceleration acting on it in the horizontal direction."
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