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...T]he ability to add live action sound onto film' mentioned by Taylor is significant because there was no sound on early film (as in 'silent movies'), and mechanisms for recording sound onto film alongside the images came later (in the 1930s). The methods used were analogue. The reference to 35 mm refers to the width of the film. The wider a film, the bigger the picture...

...under constant acceleration, the following equations relate distance ( s ), time ( t ), initial speed ( u ), final speed ( v ) and magnitude of acceleration ( a ). Initial speed: u equals v minus a times t full stop Final speed: v equals u plus a times t full stop Finding displacement using initial and final speed: s equals one divided by two times left parenthesis u plus v right ......