A Dynamics question

[SKJ25POL]

If anybody can help me with the solution of this problem, I would greatly appreciate it
Please see attached
Thanks
My Engineering Mechanics/Dynamic is rusty

 

[GregLocock]

225*dw/dt=140-0.02w^2 They don't give units for w so the intended answer is anyone's guess. rpm, deg/s, rps, rad/s?????

I'd solve it numerically, but it doesn't look too horrific to solve with calculus.

Cheers

Greg Locock


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[electricpete]

I'll bet you could solve it by laplace transform method.

looks like homework.

=====================================
(2B)+(2B)' ?

 

[Jboggs]

This is not the place for homework answers.

 

[GregLocock]

neither answer is more than a thousand.

Cheers

Greg Locock


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[goutam_freelance]

The other part you should try yourself.
Interestingly I solve such kind of problems in 'Coursehero' and earn some money.

Engineers, think what we have done to the environment !

https://www.linkedin.com/in/goutam-das-59743b30/

 

[GregLocock]

rpm, not rad/s. And you can do it by inspection T=0 when .05w^2=140

Cheers

Greg Locock


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