Lesson $13$: Chapter$17$ Tutorials

quations of Motion: Translation

Learning Goal:

The car shown has a mass of $m=1400kg$ and a center of mass located at $G.$ The coefficient of static friction between the wheels and the road is ${}_s=0\mathrm{.}230.$ The dimensions are $a=1\mathrm{.}15m,b=1\mathrm{.}75m,$ and $c=0\mathrm{.}350m.$ Assume the car starts from rest, $$ the wheels do not slip on the road, and that the car experiences constant acceleration. Neglect the mass of the wheels. $($Figure $1)$

Part A $-$ Shortest Time to Reach a Given Speed with Rear$-$Wheel Drive

Determine the shortest time it takes the car to reach a speed of $v=74\mathrm{.}0k\frac{m}{h},$ starting from rest, if the engine drives only the rear wheels.

Express your answer to three significant figures and include the appropriate units.

View Available Hint$($s$)$

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$11.$

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Part B $-$ Shortest Time to Reach a Given Speed with Front$-$Wheel Drive

Determine the shortest time it takes the car to reach a speed of $v=74\mathrm{.}0k\frac{m}{h},$ starting from rest, if the engine drives only the front wheels.

Express your answer to three significant figures and include the appropriate units.

View Available Hint$($s$)$

View Available Hint$($s$)$

$t=$