ch05_p87 97 - 87 The coordinate choices are made in the...

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87. The coordinate choices are made in the problem statement. (a) We write the velocity of the armadillo as & vv v xy =+ $$ ij . Since there is no net force exerted on it in the x direction, the x component of the velocity of the armadillo is a constant: v x = 5.0 m/s. In the y direction at t = 3.0 s, we have (using Eq. 2-11 with 0 0 y v = ) a t v F m t yyy y y =+ =+ F H G I K J = F H G I K J = 00 17 12 30 43 .. bg in SI units. Thus, ˆˆ (5.0m/s)i (4.3m/s) j .
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