Gravity acceleration

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statistics
by Dr. Osama M. Khaled last modified 2022-07-19T04:22:33+00:00

Objects accelerate if drop freely near the surface of the earth

Gravity acceleration
Questions #: 7
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Pass Score: 80.0%
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The acceleration of an object falling freely near the surface of the earth

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An object falling from a very high platform achieves a speed of ______ by end of second second

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An object falling from a very high platform achieves a speed of ______ by end of third second

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What is the speed of an object thrown upward with a starting speed of 29.4 at third second?

upward acceleration.png

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What is the right equation relating acceleration, the distance travelled, and the time of fall is?

Given v0 is the original speed, t is the time elapsed, and a is gravity acceleration

  1. d = v0t + ½ at2
  2. d = v1t + ⅓ at * 2
  3. d = v1t + ½ at * 2
  4. d = v1t + ½ at * 3
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What is the distance covered by an object falling from rest towards ground after 3 seconds?

Hint: use acceleration equation

d = v0t + ½ at2

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What is the average speed of an object falling towards ground from rest after 4 seconds?

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