Free Fall

Free Fall 

An object undergoing free fallon earthhas an acceleration g=9.81 ms minus squared.This figure is not quite constant. It depends where it is measured. In the north pole G=9.8322 while in Singapore, near the equator it is 9.7083.It also decreases slightly with altitude 9(i.e the distance from the centre of the earth). In this spread, however, we shall assume it is constant, and that air resistance has a negligible effect

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  • Created by: louis
  • Created on: 31-03-13 23:49
The acceleration of free fall
it is vertically towards the center of the earth.Galileo is said to have measured the acceleration of free fall in his famous experiment.By dropping balls from the leaning tower of Pisa .
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Galileo's experiment
Galileo was more concerned with the discovery that the acceleration of free fall is the same for all objects,whatever their mass.This contrasts with the ancient Greek ideas./
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Aristotle
Aristotle assumed without experimenting that heavier objects would fall faster that light ones
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Vertical and Horizontal motion
when a batsman hits a cricket ball for four, the ball has both vertical and horizontal motion soldiers and archers in the middle ages attempted to address this problem ,working out theories for the flight of cannon balls and arrows .
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Air resistance
In the absence of air resistance , the horizontal velocity of any projectiles remains constant while it is accelerating downwards
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Other cards in this set

Card 2

Front

Galileo was more concerned with the discovery that the acceleration of free fall is the same for all objects,whatever their mass.This contrasts with the ancient Greek ideas./

Back

Galileo's experiment

Card 3

Front

Aristotle assumed without experimenting that heavier objects would fall faster that light ones

Back

Preview of the back of card 3

Card 4

Front

when a batsman hits a cricket ball for four, the ball has both vertical and horizontal motion soldiers and archers in the middle ages attempted to address this problem ,working out theories for the flight of cannon balls and arrows .

Back

Preview of the back of card 4

Card 5

Front

In the absence of air resistance , the horizontal velocity of any projectiles remains constant while it is accelerating downwards

Back

Preview of the back of card 5

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