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ECAT Physics QUESTION #731
Question 1
When a ball moves from and reaches to its maximum height in 3 seconds what is its initial velocity?
  • 40 m/sec
  • 29.4 m/sec✔️
  • 35 m/sec
  • 25 m/sec
Correct Answer Explanation
At maximum height vertical velocity = 0. Using v = u - gt: 0 = u - (9.8)(3); u = 29.4 m/s.