(a) At what instant did I first pass the position (x_{mathrm{f}}=+3.4 mathrm{~m}) (see curve 2 in Figure...
Question:
(a) At what instant did I first pass the position \(x_{\mathrm{f}}=+3.4 \mathrm{~m}\) (see curve 2 in Figure 2.10)?
(b) What was my average speed up to that instant?
Transcribed Image Text:
Figure 2.10 Two of the infinite number of ways for getting from an initial position x; to a final position x. Curve 1: walking in one direction only; curve 2: walking beyond the endpoint and then backtracking. Both ways result in a displacement of +2.4 m in 6 s. curve 1: Walk slowly forward from beginning to end. curve 2: Walk quickly forward, pause, then backtrack slowly to the end. x (m) 5 4 begin end begin pause end pause curve 2 At = 1.0 s Ax = -0.58 m xq 3 2 At = 1.0 s Ax = +1.7 m curve 1 begin x At = 6.0 s 2 3 st end Ax = +2.4 m 5 6 t(s)
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