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Mrrafil [7]
3 years ago
6

Consider a car engine running at constantspeed. That is, the crankshaft of the en-gine rotates at constant angular velocity whil

eeach piston moves back-and-forth in its cylin-der according to the rules of simple harmonicmotion.2030 rpm6.95 cmSuppose the two extremal positionsxmaxandxminof a piston are 6.95 cm from eachother.When the crankshaft of the engine rotatesat 2030 rpm (revolutions per minute), what isthe maximal speed|v|maxof the piston?Answer in units of m/s.
Physics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer:

The value is  |v| = 7.39 \  m/s

Explanation:

From the question we are told that

    The angular speed is  w = 2030 \ rpm = \frac{2030 * 2 * \pi }{ 60} =  212.61 \ rad/s

    The distance between the minimum and maximum external position is  d = 6.95 \ cm  = 0.0695 \ m

Generally the amplitude of the crank shaft is mathematically represented as

         A =  \frac{d}{2}      

=>     A =  \frac{0.0695}{2}    

=>     A =  0.03475 \  m

Generally the maximum speed of the piston is mathematically represented as

        |v| = A * w  

=>    |v| = 0.03475 * 212.61

=>    |v| = 7.39 \  m/s

     

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