Check out our trending course on Theory of Machines - bitly.ws/K4Zr Use coupon “KZfaq 12” to get “FLAT 12%” OFF at checkout.

Vector diagram is for force, but you use Xo instead of Fo. Also, it could be explained that how the force vector diagram is made. It will help getting more clarity. Thanks.

There is no explanation for any thing. You just copy pasted every thing from book/note.

How come some book have written F (t)= f cos (wt) and you are using F (t)= f sin (wt), can you explain the differences in this

Thank you sir.

Love this guy, loved his "Bernoulli's equation for compressible flow" video. Small problems here, the omega squared term does NOT get a minus sign in front if you are going to add pi/2. It's either one or the other, those two operations are equivalent. Another fantastic video!

What is x ? Why need to mention x?

derivative of X_o sin(wt - phi) gives X_o w cos(wt-phi)

Writing you are very small letters 👍👍👍

There is no clear explanations on derivations

nice sir tq sir some explaination also give sir

Last expression me *r* khan se aa gya ??

No explanation, and you could have written a little bit smaller. It would have been much clearer then.

You did a blunder in this part, there Fe = Xo*Cos(wt) but you take Sin(wt). when you derivate XoSin(wt) it will become cos(wt) but you didn't

Why did 'zeta' come into the equation? I mean what does the term 'zeta' mean?

Why is there no 'mg' in the free body diagram?