A. Without finding T and N, write the acceleration of the motion a(t) to the position vector r(t) = (t)i + (t+)j+ (t-) k in the form a(t) = a, T+ ay N at the value of t= 1.
Q: unit vector in the direction of -M + 2N
A: M = -10ax +4ay -8az N = 8ax + 7ay -2az To find the unit vector in the direction of -M+2N
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