Part A

The car passes point A with a speed of $25\frac{m}{s}$ after which its speed

is defined by $v=(25-0\mathrm{.}15s)\frac{m}{s}.($Figure $1)$

Figure

Determine the magnitude of the car's acceleration when it reaches point $B,$ where $s=51\mathrm{.}5m.$

Express your answer with the appropriate units.

$a=$

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