Horizontal_projectile_problems_2

# 627 ms what is the final velocity of the ball use the

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What is the velocity of the ball, in the y-axis, when it hits the ground? (-6.27 m/s) What is the final velocity of the ball? Use the velocity in the x-axis and the final velocity in the y-axis to find the resultant velocity. (44.2 m/s) What angle is the ball traveling at when it hits the ground? Another way to phrase this is find the angle the resultant velocity vector makes with the horizontal. (351.84°) 1) A cannon ball is shot horizontally off a cliff with an initial velocity of 40 m/s. The cannon ball lands 4 seconds later. Answer the following questions: What is the cannon ball’s displacement in the y-axis? (-78.4 m) What is the cannon ball’s displacement in the x-axis? (160 m) What is the velocity of the ball, in the y-axis, when it hits the ground? (-39.2 m/s) What is the final velocity of the ball? Use the velocity in the x-axis and the final velocity in the y-axis to find the resultant velocity. (56 m/s) What angle is the ball traveling at when it hits the ground? Another way to phrase this is find the angle the resultant velocity vector makes with the horizontal. (315.6°) 2) A major league pitcher throws a horizontal pitch from a height of 2 meters. The ball lands 28 m away from the pitcher. Answer the following questions: How long did it take for the ball to hit the ground? (0.64 s) What was the initial velocity of the ball? (43.75 m/s) …. about 98.3 mph What is the velocity of cannon ball, in the y-axis, when it hits the ground? (-6.27 m/s) What is the final velocity of the cannon ball? Use the velocity in the x-axis and the final velocity in the y-axis to find the resultant velocity. (44.2 m/s) What angle is the ball traveling at when it hits the ground? Another way to phrase this is find the angle the resultant velocity vector makes with the horizontal. (351.84°)
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• Fall '09
• Lyons
• Velocity, ball

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