Free-Fall Acceleration
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Date:
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Directions: Use the information to identify your given and solve for desired quantities.
Remember: Acceleration due to gravity is g = -9.9m/s².
vf = vi + at
x = 1/2 (vi + vf)Δt
vf² = vi² + 2a(Δx)
x = vi(Δt) + 1/2a(Δt²)
1.
Kevin drops a pile of roof shingles from the top of a roof located at 8.52 meters above the ground.
Determine the time required for the singles to reach the ground.
2.
Taylor throws her mother's crystal vase vertically upwards with an initial velocity of 26.2 m/s.
Determine the following:
a) The maximum height the vase reaches.
b) The time it takes to get to the top.
c) The acceleration at the maximum height.
e) The time it takes for the entire trip (back to the ground).
3.
Cody is riding the Giant Drop at Great America. The ride drops him and he free falls for 2.6 seconds,
answer the following questions:
a) What will be his nal velocity at the end of 2.6 seconds?
b) How far will he fall?
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4.
The observation deck of a tall skyscraper is 370 m above the street.
a) Determine the time required for a penny to free fall from the deck to the street below.
b) What will the speed of the penny be just before hitting the street?
5.
How would you describe a free-falling object?
6.
What is the rate of acceleration of all free-falling objects?
7.
How is the velocity for an object changing during freefall?
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