CALC A bird is flying due east. Its distance from a tall build-ing is given by x(t) = 28m + (12.4m / s) * t - (0.045m / (s ^ 3)) * t ^ 3 What is the instantaneous velocity of the bird when t = 8s ?
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A bird is flying due east. Its distance from a tall building is given by $x(t) =$ 28.0 m $+$ (12.4 m/s)$t$ - (0.0450 m/s$^3)t^3$. What is the instantaneous velocity of the bird when $t =$ 8.00 s?
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A bird is flying due east. Its distance from a tall building is given by x(t) = 28.0m + (12.7m/s)t - (0.0450m/s^3)t^3. What is the instantaneous velocity of the bird when t = 7.00 s?
Prabhu R.
A bird is flying due east. Its distance from a tall building is given by $x(t)=28.0 \mathrm{~m}+(12.4 \mathrm{~m} / \mathrm{s}) t-\left(0.0450 \mathrm{~m} / \mathrm{s}^{3}\right) t^{3} .$ What is the instantaneous velocity of the bird when $t=8.00 \mathrm{~s}$ ?
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