A rolling ball moves from x1 = 8.3 cm to x2 = -4.8 cm during the time from t1 = 3.5 s to t2 = 6.2 s 1. What is its average velocity over this time interval?
Added by Melissa W.
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8 \, \text{cm} - 8.3 \, \text{cm} = -13.1 \, \text{cm}\] Show more…
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(I) A rolling ball moves from $x_1 =$ 8.4 cm to $x_2 = -$4.2 cm during the time from $t_1 =$ 3.0 s to $t_2 =$ 6.1 s. What is its average velocity over this time interval?
Paul G.
(I) A rolling ball moves from $x_{1}=3.4 \mathrm{cm}$ to $x_{2}=-4.2 \mathrm{cm}$ during the time from $t_{1}=3.0 \mathrm{s}$ to $t_{2}=6.1 \mathrm{s}$ . What is its average velocity?
(II) The position of a ball rolling in a straight line is given by $x=2.0-3.6 t+1.1 t^{2},$ where $x$ is in meters and $t$ in seconds. $(a)$ Determine the position of the ball at $t=1.0 \mathrm{s}$ $2.0 \mathrm{s},$ and 3.0 $\mathrm{s}$ (b) What is the average velocity over the $2.0 \mathrm{s},$ and 3.0 $\mathrm{s}$ (b) What is the average velocity over the interval $t=1.0 \mathrm{s}$ to $t=3.0 \mathrm{s} ?$ (c) What is its instanta- neous velocity at $t=2.0 \mathrm{s}$ and at $t=3.0 \mathrm{s} ?$
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