onionnn
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The question is about the air track glider experiment to measure the acceleration due to gravity.
I know that this question probably requires the use of the a=v-u/t but I don't know how to find the value of v and u
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onionnn
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Here is the information provided in the question
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Stonebridge
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(Original post by onionnn)
The question is about the air track glider experiment to measure the acceleration due to gravity.
I know that this question probably requires the use of the a=v-u/t but I don't know how to find the value of v and u
Speed is calculated as distance divided by time, and you are given that it takes a certain measured time (0.5s) for a 10cm length of card to pass through a beam. Later, you are given a second time for the same card to pass through the beam. This gives two speeds from which you can find the change in speed. You are give the time interval in which this change in speed took place, which allows you then to use your formula to find acceleration.
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Joinedup
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can't see the diagram - the table gives you the times for the 10cm card to pass through a light gate and you're told the acceleration while the card is passing through the light gates is negligible.
so you can get the instantaneous velocity at both gates using the time taken for the 10cm card to pass the light gates... velocity=displacement/time
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