Engineering Mechanics - PKRB: Force and Animation - Discussion

Discussion :: PKRB: Force and Animation - General Questions (Q.No.4)

4. 

The sports car has a mass of 1.5 Mg and a center of mass at G. Determine the shortest time it takes for it to reach a speed of 80 km/h, starting from rest, if the engine only drives the rear wheels, whereas the front wheels are free rolling. The coefficient of friction between the wheels and road is = 0.2. Neglect the mass of the wheels for the calculation.

[A]. t = 17.49 s
[B]. t = 18.12 s
[C]. t = 18.76 s
[D]. t = 22.7 s

Answer: Option A

Explanation:

No answer description available for this question.

Srini said: (Aug 8, 2015)  
Please explain it.

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