A child throws a ball with an initial speed of 8.0 m/s at an angle of 40° above the horizontal. The ball leaves her hand 1.0 m above the ground. At what angle below the horizontal does the ball approach the ground? Hint: Another multiple part problem. 1) Compute the x- and y-components of the initial velocity vector. 2) Draw a picture of the trajectory and label it with the initial and final positions. 3) Solve the y position equation of motion for the time. Choose the physical root. 4) Compute the final y-velocity just as the ball hits the ground. The final x-velocity is the same as it was initially. 5) Compute the angle of the final velocity vector from its components. O 40° 35° O 42° O 48° O o oO
A child throws a ball with an initial speed of 8.0 m/s at an angle of 40° above the horizontal. The ball leaves her hand 1.0 m above the ground. At what angle below the horizontal does the ball approach the ground? Hint: Another multiple part problem. 1) Compute the x- and y-components of the initial velocity vector. 2) Draw a picture of the trajectory and label it with the initial and final positions. 3) Solve the y position equation of motion for the time. Choose the physical root. 4) Compute the final y-velocity just as the ball hits the ground. The final x-velocity is the same as it was initially. 5) Compute the angle of the final velocity vector from its components. O 40° 35° O 42° O 48° O o oO
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 19P: A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed...
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