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Home Q & A Board Science-Related Homework Help Mathematics
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tony123 tony123
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11 years ago
r = [4sint]i + [4cost]j + [3t]k

The unit tangent vector at o is T(0) = (4/5)i + (3/5)k

But what is the derivative of the unit tangent vector at 0 T'(0)? Do you just apply the quotient rule to the formula for the unit tangent vector?
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wrote...
#1
11 years ago
dr/dt= 4cost i-4sin t j +3 k
d2r/dt^2 = -4sint i-4cost j   and t at t=0 (unit vector) is- j
Answer accepted by topic starter
rivertuberivertube
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#2
Posts: 147
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11 years ago
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