82. (a) This distance is determined by the longitudinal speed: ()622000m/s 40 10 s8.0 10 m.dtν−−==×=×AA(b) Assuming the acceleration is constant (justified by the near-straightness of the curve a= 300/40 ×10–6) we find the stopping distance d:262230040 10
This is the end of the preview. Sign up
access the rest of the document.