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Required information

Problem $11\mathrm{.}141-$ Normal and tangential components, constant tangential acceleration$-$relative problem

Race car $A$ is traveling on a straight portion of the track while race car $B$ is traveling on a circular portion of the track. The speed of race car $A$ is $255k\frac{m}{h}$ and the speed of race car $B$ is $215k\frac{m}{h}.$ At the instant shown, the speed of $A$ is increasing at the rate of $10\frac{m}{s^2},$ and the speed of $B$ is decreasing at the rate of $6\frac{m}{s^2}.$ Consider the position shown.

Problem $11\mathrm{.}141.$a $-$ Normal and tangential components, constant tangential acceleration relative velocity

Determine the velocity of $B$ relative to $A.$

The velocity of $B$ relative to $A$ is $k\frac{m}{h}$