22 Let us suppose that an object changes its velocity from 0 ms to 50 ms along some2222 Energy2 Energy322upward Now consider an object that has an initial velocity 10 ms upward and a final2 ID: 471246
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Calculating average acceleration from velocity change and time®a or aav, as the®aav = ,22.] Let us suppose that an object changes its velocity from 0 m/s to 50 m/s along some2;222 Energy,2 Energy,322,upward. Now consider an object that has an initial velocity 10 m/s upward and a final22222m/s2gg speed0.0 s0 m/s1.0 s10.0 m/s2.0 s20.0 m/s3.0 s29.8 m/s4.0 s39.9 m/s5.0 s50.1 m/s Energy,4The table lists data from 5 seconds worth of time: 6 measurements and 5 intervals. Thetime interval 1 10.0 m/s 10.0 m/s/s2 1.0 s 10.0 m/s 10.0 m/s/s3 1.0 s 9.8 m/s 9.8 m/s/s4 1.0 s 10.1 m/s 10.1 m/s/s5 1.0 s 10.2 m/s 10.2 m/s/s 2a = a x2x Energy,5a = dvdt vdrdt . The instantaneousness comesv = limitDt®0 r at time t + Dt - r at time tDt ,so the process of taking the limit assures that the value determined is at an instant of time.