The car is moving with a speed $v_0=75m\frac{i}{h}r$ up the $6-$percent grade, and the driver applies the brakes at point $A,$ causing all wheels to

skid. The coefficient of kinetic friction for the rain$-$slicked road is ${}_k=0\mathrm{.}63.$ Determine the stopping distance $s_{AB}.$ Repeat your

calculations for the case when the car is moving downhill from $B$ to $A.$

Answers:

Uphill: $,s_{AB}=$

i

ft

Downhill: $s_{BA}=$

i

ft