- Checking the dimensional consistency of equations | dimensional analysis kisembo academy
- Solving equations involving fractions

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- Checking the dimensional consistency of equations | dimensional analysis kisembo academy
- Solving equations involving fractions

Is this taught to 1st Year IIT students?

very gud and clear explanation….thanks a lot to the Prof. and IITM team…. ðŸ™‚

It is the partial derivative WRT theta. Not a proper derivative WRT "time".

eg. consider f=yx^2… df/dy = x^2 + 2yx dx/dy (via implicit differentiation)

but the partial derivative pdf/pdy = x^2, and that's it.

This is a similar scenario.

I think it is because he is differentiating with respect theta-dot, so cos(theta) looks like a constant and stays the same just like m,l, and y-dot-s. Does that make sense?

Why are the potentials negative?

at 25 mins in where he defines the height of mass 2 as (l-q) shouldn't that be (l -q) – pi*r where r is the radius of the pulley, as some length of the string is wrapped around the pulley?

no, when he said the total length is "l", he is taking into account that part of string which is wrapped around the top half as well, in other words, the "l" he wrote, is equal to " h + R(pi) + m" where h is the distance of first string, and m is of the other, this whole thing is included in his "l". mkay?

Hi there, thanks for the response,

Doesn't he use the "l" to define the vertical distance of the string? which would neglect the wrapped part?

Thanks

nice

Superb video! Excellent explanation…

In the example of the pendulum where the suspension itself is moving 40:00 with a uniform velocity Ys dot…. shouldn't the term Ys double dot be zero ?

sir you are doing great work