Question 8 of 20 From the top of a tall building (height > 100 m), ball A is launched with a velocity of 20 m/s at an angle of 45° above the horizontal direction, ball B is launched with a velocity of 20 m/s in the horizontal direction, and ball C is launched with a velocity of 20 m/s at an angle of 45° below the horizontal direction. All of the balls are identical and launched at exactly the same time, t=0 seconds. Which of the following choices correctly relates the horizontal component of the final velocities of the three balls at the instant before they touch the ground? Ignore any effects of air resistance. O The horizontal component of ball C is less than that of ball A, which is less than that of ball B. O The horizontal components of balls A and Care equal and greater than that of ball B. O The horizontal components of all three balls are the same. O The horizontal component of ball B is less than that of ball C, which is less than that of ball A. O The horizontal components of balls A and Care equal and less than that of ball B.

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Question 8 of 20
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From the top of a tall building (height > 100 m), ball A is launched with a velocity of 20 m/s at an angle of 45° above the horizontal
direction, ball B is launched with a velocity of 20 m/s in the horizontal direction, and ball C is launched with a velocity of 20 m/s at an
angle of 45° below the horizontal direction. All of the balls are identical and launched at exactly the same time, t=0 seconds. Which of
the following choices correctly relates the horizontal component of the final velocities of the three balls at the instant before they
touch the ground? Ignore any effects of air resistance.
O The horizontal component of ball C is less than that of ball A, which is less than that of ball B.
O The horizontal components of balls A and Care equal and greater than that of ball B.
O The horizontal components of all three balls are the same.
O The horizontal component of ball B is less than that of ball C, which is less than that of ball A.
O The horizontal components of balls A and C are equal and less than that of ball B.
c
Transcribed Image Text:Question 8 of 20 > From the top of a tall building (height > 100 m), ball A is launched with a velocity of 20 m/s at an angle of 45° above the horizontal direction, ball B is launched with a velocity of 20 m/s in the horizontal direction, and ball C is launched with a velocity of 20 m/s at an angle of 45° below the horizontal direction. All of the balls are identical and launched at exactly the same time, t=0 seconds. Which of the following choices correctly relates the horizontal component of the final velocities of the three balls at the instant before they touch the ground? Ignore any effects of air resistance. O The horizontal component of ball C is less than that of ball A, which is less than that of ball B. O The horizontal components of balls A and Care equal and greater than that of ball B. O The horizontal components of all three balls are the same. O The horizontal component of ball B is less than that of ball C, which is less than that of ball A. O The horizontal components of balls A and C are equal and less than that of ball B. c
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