OCR Gateway A (9-1) P2.2.5 - Everyday Forces Summary Higher

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OCR Gateway A revision video for Physics and Combined Science on P2 - Everyday Forces for the higher tier. First exams in 2018.
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are we supposed to memorise how rockets work for our exam or is it an example?

kalasy.
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at 3:41 the question asks to measure the line for A. Does the question give you the size of A? If not and your ment to draw A how determine how long A should be?

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