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Terminal Velocity Investigation.

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Terminal Velocity Apparatus: A 100cm ruler A bun case - (to represent the parachute) A clamp and stand A stopwatch Method: The clamp and stand was set up at the edge of the table. The distance from the floor to the top of the table was measured and recorded. The 100cm ruler was then secured to the clamp - so the 0cm mark was touching the top of the table. It was important to make sure that both these factors were measured accurately in order to perform a fair test. It was then possible to identify the distance of the fall. ...read more.


� 3). This process was reiterated for each of the nine heights and a table of results was created. Results: Height (m) Time in secs. (1) Time in secs. (2) Time in secs. (3) Average time 0.40 0.79 0.73 0.82 0.78 0.50 0.87 0.95 0.90 0.91 0.60 0.87 0.99 1.07 0.98 0.80 1.00 1.02 1.09 1.04 1.00 1.17 1.16 1.12 1.15 1.20 1.28 1.31 1.28 1.29 1.40 1.36 1.40 1.32 1.36 1.50 1.49 1.56 1.30 1.45 1.60 1.56 1.59 1.43 1.53 A graph was produced to show these results. On the same chart, a second set of results was plotted, showing the hypothetical result. ...read more.


Conclusion: All objects have what is known as a terminal velocity. As the object, i.e. a parachute, is falling, the air friction pushes against it, and tries to slow it down. When the object begins to fall, gravity is the dominant force, therefore the object speeds up. As it speeds up, the air friction gets greater and greater, until it reaches a point where the object cannot accelerate any more. This is when air friction equals the gravity and the forces are balanced. This moment is when the objects 'terminal velocity' is reached. When gravity is greater than When the forces are balanced, air friction, the object the object does not accelerate or accelerates. decelerate. Hiren Koyani - Physics Experiment: Terminal Velocity - May 2001 ...read more.

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