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Knowing that the speed of the flywheel is 300 rpm just before a punching operation, determine the speed immediately after the punching operation?

Sagot :

tanisharawat014

the speed of flywheel is 300 rpm just before a punching operation,then the speed of the flywheel immediately after the punching operation is 299.93 rpm.

The answer of the above question is as follows:

mass of the flywheel of the punching machine (m) is 300 kg .

radius of gyration of the flywheel is :

[tex]k = 600 mm \times \frac{1m}{100mm} = 6m[/tex]

work to be done against each punching by the wheel (W) is 2500J.

initial angular velocity of the flywheel is:

[tex]w = 300rpm \times \frac{ \frac{\pi}{30} \frac{rad}{s} }{1rpm} = 10 \frac{\pi \: rad}{s} [/tex]

therefore the angular speed of the flywheel immediately after punching is given by

w1 =299.93 rpm

Learn more about angular speed here:

brainly.com/question/6860269

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Disclaimer : the given question is incomplete, thus the complete question is as follows:

Question: The flywheel of a punching machine has a mass of 300 kg mass and a radius of gyration of 600 mm. each punching operation requires 2500 J of work.

(a) knowing that the speed of the flywheel is 300 rpm just before a punching,determine the speed immediately after the punching.

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