9/13/2023 0 Comments Asu logger pro for students![]() Projected vertically up or down, move with the constant downward acceleration due to gravity Objects that move vertically near the surface of the Earth, either falling or having been 1 Graphs of position (a), velocity (b) and acceleration (c) vs. Velocity, vave, will be always midway between the initial and final velocities: vave = (v0 + v).įig. Note that x represents position, not distance, and x – x0 is the displacement.īecause in case of constant acceleration the velocity increases at a uniform rate, the average Or, if we know the position x at time t, the velocity can be calculated from the following: The velocity (instantaneous) of an object after time t can be determined as: The position at any given instant of time, t, of an object moving withĬonstant acceleration a, having initial position and initial velocity v0, can be found as: time graph is a straight line.ĭerived from the definitions of velocity and acceleration, there are four basic kinematicĮquations governing the motion with constant acceleration. In case of uniformly accelerated motion (acceleration isĬonstant) the velocity vs. time, the slope of the line tangent to this plot at some instant t They have the opposite signs, it is slowing down (decelerates). Straight line, if velocity, v, and acceleration, a, have the same sign, the object is speeding up. The sign of acceleration indicates the direction of the acceleration butĭoesn’t directly show whether the speed is increasing or decreasing. But deceleration does not mean that the acceleration is ![]() Small, the average acceleration becomes equal to the instantaneous acceleration:įor most people, acceleration means speeding up. The unit of acceleration is m/s2.īy analogy to velocity, when the time interval for measuring the acceleration becomes extremely The average acceleration is a vector that points in the same direction as the change in the Measure of how much the velocity changes in time, the concept of acceleration is introduced. In a wide range of motions, the velocity can change from moment to moment. What type of motion is a free fall motion? Which error component has a dominant effect on the overall value of ∆g/g? Does the theoretical value of g falls within the range of your reported result? For part 2, list one source of error that were statistical in nature, and one that were systemic in nature, and very briefly explain the reasoning for it.Ĭonstant Acceleration Motion in One Dimension time fit agree with the value of acceleration from velocity vs time graph?Ĭompare the graphs you generated in part 2 and part 1. On average, how close does the value of acceleration from the position vs. Why? Why are the velocities negative? If you had known the acceleration would you be able to deduce whether the object was speeding up or slowing down? Explain your reasoning using the results of the 4 runs you have performed in this lab. time graph in comparison to run 1? In run 3 why is the acceleration negative while the velocities are positive? How did the car move in this case? In run 4 the acceleration is positive even though the cart is slowing down with time. In run 2 how different is the shape of position vs. In run 1, how do the values of acceleration you calculated using position vs time graph and velocity vs time graph agree with each other? Compare graphs generated in Run 1. time graph related to the magnitude and direction of acceleration and how? Support all of your answers with your data. time graph tells us the magnitude of acceleration? What attribute of position vs. How can you tell that the cart was not moving with constant velocity based on the position vs time graph generated in this experiments? What attribute of velocity vs. All questions from the lab manual should be answered in the narrative form. Discuss the relationship between your raw measurements and your final results the relationship between quantities in the graph relationship between the independent and dependent variables. Then state only the key results (with uncertainty and units) quantitatively with numerical values do not provide intermediate quantities. Briefly explain the theory concept that was tested. Begin the discussion with the purpose of the experiment. It is where you describe whether your results support the physics principal being investigated in the lab. This is the most important part of the lab report. What is the physics concepts/theory/law to be investigated in this experiment? It is one or two sentences in your own words.įor discussion/ conclusion part, my professor left pretty specific instruction: In this lab report, my part is objective and discussion/ conclusion.įor objective part, my professor left some guideline:
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