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11 gru 2020 · Recorded with https://screencast-o-matic.com
It works because displacement is the product of velocity and time. And in our graph when you multiply velocity and time you're basically multiplying two lengths in our graph and that gives us the area. And so that's the secret to calculating displacements and from a velocity time graph.
Calculate the value of the acceleration due to gravity g using the values of acceleration obtained from the Excel graphs. Tabulate these 3 values of g. Calculate the standard deviation. of the three measurements of g as a measure of its uncertainty due to the randomness of the measurements.
Now, in C13 replace the formula =C12 + g*delta_t by =C12+ (g – (k/m)*C12)*delta_t. Copy this formula down to the end of the table. At this point, it is also worth creating a graph of velocity over time. This graph makes it more evident that a terminal velocity is being approached.
Worked example. (a) Calculate the velocity of the athlete during the first 2 seconds. (b) Describe the motion of the athlete between the times of 2 seconds and 5 seconds. (c) Calculate the velocity of the athlete at 10 seconds. (d) Find the total distanced travelled by the athlete during the 14 seconds.
The Velocity-Time Graphs: Displacement Calculations Interactive Video Tutorial describes the significance of area on a velocity-time graph. Details about how to calculate the area between the line and the time axis are explained and modeled through numerous examples.
Finding displacement from velocity graphs. Google Classroom. Microsoft Teams. You might need: Calculator. An eagle is flying around and its velocity v as a function of time t is given in the graph below where rightwards is the positive velocity direction.
