calculus of vector-valued fun3
2011-01-15 9:16 pm
if r(t),v(t),a(t) represent the postion, velocity, and accleration at time t of a particle moving in 3-space , and if , at every time t, the a is perpendicular to both r and v , show that the vector r(t)-tv(t) has constant length(i.e independent of time).
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2011-01-15 11:44 pm
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