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A football player kicked a ball with an initial velocity of 20 m/s at an angle from the ground.
1. What is the velocity at its peak of flight of the football?
a. 0 m/s2 b. 9.8 m/s c. 0 m/s d. -9.8 m/s
2. What is the horizontal velocity of the football one second after it is being kicked? a. 0 m/s2 b. 0 m/s c. 20 m/s d. -9.8 m/s
3. What is the vertical acceleration of the football one second after it reached its peak? a. 0 m/s2 b. 9.8 m/s2 c. 0 m/s d. -9.8 m/s2
4. What will happen to the vertical velocity of the football as it falls to the ground? a. decreases c. remain the same b. increases d. the velocity is zero
5. What will happen to the horizontal velocity of the football as it falls to the ground? a. decreases c. remain the same b. increases d. the velocity is zero
Answers & Comments
Answer:
1) D
2) C
3) B
4) A
5) C
Explanation:
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