Drag Problem $2-(30\backslash \%)$

A motorcycle skids $13\mathrm{.}1$ m with only the rear wheel locked. It then skids $6\mathrm{.}4$ m with both wheels locked. It then slides $33\mathrm{.}8$ m on its side before it hits a concrete barrier at about $10$ kph $.$ A skid test on the bike with both tires locked determined the drag factor to be $0\mathrm{.}9.$ A similar skid test with the bike sliding on its side produced a drag factor of $0\mathrm{.}5.$ Determine the speed of the bike at the start of the one$-$wheel skid. Time$-$Distance Problem $-(20\backslash \%)$

A disabled large truck is blocking the travel lane following a curve with limited line of sight. A pickup travelling $75$ mph comes around the curve and its driver attempts to stop. If the sight distance is $360$ feet, the reaction time is $1\mathrm{.}0$ second, and the braking drag factor is $0\mathrm{.}70,$ can the pickup be stopped in time?