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1. How fast do all objects accelerate towards earth due to gravity?

1. How fast do all objects accelerate towards earth due to gravity?. 1. How fast do all objects accelerate towards earth due to gravity ? 9.8 m/s 2. 2. If two objects, a bowling ball and lacrosse ball, were dropped off of a building, which would hit the ground first assuming no wind resistance?.

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1. How fast do all objects accelerate towards earth due to gravity?

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  1. 1. How fast do all objects accelerate towards earth due to gravity?

  2. 1. How fast do all objects accelerate towards earth due to gravity?9.8 m/s2

  3. 2. If two objects, a bowling ball and lacrosse ball, were dropped off of a building, which would hit the ground first assuming no wind resistance?

  4. 2. If two objects, a bowling ball and lacrosse ball, were dropped off of a building, which would hit the ground first assuming no wind resistance? • They would hit the ground at the same time!

  5. 3. Describe the velocity of an object while it is in free fall.

  6. 3. Describe the velocity of an object while it is in free fall. • Every second it increases by 9.8 m/s.

  7. 4. How fast would a penny be traveling if it was dropped off a building and fell for 6 seconds?

  8. 4. How fast would a penny be traveling if it was dropped off a building and fell for 6 seconds? • A=V/T • 9.8 = V/6 • V = 58.8 m/s

  9. 5. Determine the velocity of a professional cliff jumper that jumps off a cliff, does three somersaults, and lands in the water in 4 seconds.

  10. 5. Determine the velocity of a professional cliff jumper that jumps off a cliff, does three somersaults, and lands in the water in 4 seconds. • A = V/T • 9.8 = V/4 • V = 39.2 m/s

  11. 6. Determine the acceleration of a shoe that is dropped off of the bleachers, falls for 4.62 seconds and strikes the ground at 39.27 m/s. Is this an accurate measurement? What could account for differences, if not?

  12. 6. Determine the acceleration of a shoe that is dropped off of the bleachers, falls for 4.62 seconds and strikes the ground at 39.27 m/s. Is this an accurate measurement? • A = V/T • A = 39.27/4.62 • A = 8.5 m/s2 • This is not an accurate measurement because the acceleration was not 9.8 m/s2. This could be due to air resistance.

  13. 7. Calculate the time it took a tennis ball to hit the ground if it landed with a velocity of 15.56 m/s

  14. 7. Calculate the time it took a tennis ball to hit the ground if it landed with a velocity of 15.56 m/s • A = V/T • 9.8 = 15.56/T • 9.8T = 15.56 • T = 1.59 seconds

  15. 8. Determine the velocity with which a soccer ball hits the ground if it falls towards Earth for 3.26 s after being "headed."

  16. 8. Determine the velocity with which a soccer ball hits the ground if it falls towards Earth for 3.26 s after being "headed." • A = V/T • 9.8 = V/3.26 • V = 31.95 m/s

  17. FINAL QUESTION!!!!

  18. 9. Choose two sports and describe how gravity affects the motion in the sports. Summarize what would happen if gravity suddenly disappeared during the middle of play for each.

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