87. The coordinate choices are made in the problem statement. (a) We write the velocity of the armadillo as &vvvxy=+$$ij. Since there is no net force exerted on it in the xdirection, the xcomponent of the velocity of the armadillo is a constant: vx= 5.0 m/s. In the ydirection at t= 3.0 s, we have (using Eq. 2-11 with 00yv=)atvFmtyyyyy=+ =+FHGIKJ=FHGIKJ=0017123043..bgin SI units. Thus, ˆˆ(5.0m/s)i(4.3m/s) j .
This is the end of the preview.
access the rest of the document.